which element classes do potassium and chlorine belong to

Chlorine is the eighth element after fluorine. These MCQs will help you to properly prepare for exams.

Element Potassium; Atomic Number: 19: Symbol: K: Element Category: Alkali Metal: Phase at STP: Solid: Atomic Mass [amu] 39.0983: Density at STP [g/cm3] 0.856: Electron Configuration [Ar] 4s1: Possible Oxidation States +1: Electron Affinity [kJ/mol] 48.4: Electronegativity [Pauling scale] 0.82: 1st Ionization Energy [eV] 4.3407: Year of Discovery:

Potassium chloride is characterized by a colourless, crystalline appearance and an odourless smell.

Answer: a. Explanation .

For example, oxides contain one or more oxygen atoms, hydrides contain one or more hydrogen atoms, and halides contain one or more halogen (Group 17) atoms.

Potassium is a metal, and chlorine is a nonmetal.

B(7): 2, 5 belong to group 15 because it has 5 valence electrons.

It is also a vital element in the human diet. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. 49. Q.5.

Chlorine and potassium are also separated by one element in the periodic table (their atomic numbers being 17 and 19, respectively) and yet both have valency 1. Potassium metal (K), chlorine gas (Cl), and potassium chloride (KCl) are all homogeneous compounds. As we know, elements on the left side of the periodic table are metals and have a tendency to lose electrons and acquire a positive charge.

Chlorine is a member of the halogen (salt-forming) group of elements.

If you have any queries, drop a Answer. Chlorine is not one of the 6 semimetal elements. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses.

An atom has electronic configuration 2, 8, 7. (b) The given element is Silicon (atomic symbol: Si).

In Dobereiners triad containing L, Na, K, if atomic masses of 1ithium and potassium are 6.9 and 39.1, then what will be the atomic mass of sodium?

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As the element has 6 valence electrons, group number = 10 + 6 = 16 The valency of an element is determined by the number of electrons present in the outermost shell. Answer PubChem. Potassium metal and chlorine gas are elements that are the reactants for the product potassium chloride, which is a compound. 2K (s) + Cl2(g) 2KCl (s) The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

Chlorine (17) belongs to which group and period (a) 7, 3 (b) 17, 3 (c) 1, 3 (d) 16, 3.

Phosphorus is found in Group 15 (VA) of the periodic table. what happens when ionic compounds dissolve in water?

Calcium, Magnesium, Sodium, Beryllium (a) Calcium (b) Magnesium (c) Sodium (d) Beryllium.

Element B is Cl (Chlorine). example of a chemical that is conductive in water.

(a) increase. Sodium is one of lithiums eight elements. Students can solve NCERT Class 10 Science Periodic Classification of Elements Multiple Choice Questions with Answers to know their preparation level. Ans.

For example, Sodium, potassium, lithium, rubidium, and caesium have similar chemical properties.

(a) Yes, Dobereiners triads also exist in the columns of Newlands' Octaves. Answer: Atomic number of the element = 16 Thus, electronic configuration = 2, 8, 6 Since, this element contains 3 shells hence, it belongs to period number 3. 1630-92). MCQ Questions for Class 10 Science: Ch 5 Periodic Classification of Elements.

The elements of a group have similar chemical properties but in a period they have different chemical properties. Elements P, R will show similar properties as they belong to they same group with valency 1 due to same number of valance electrons.

10. Fluorine and chlorine have chemical characteristics that are similar. They are separated by one element in the periodic table, and have valencies 1 and 3 respectively.

Potassium and chlorine is a mixture because the parts are all heterogeneous or separate. Looking at the periodic table, to which element classes do potassium and chlorine belong to? also show that calcium a nd potassium are the most abundant in all the plants studied, some elements are do minant in content and others are lo w in content.

Ans.

Many other potassium salts are of great importance, including the nitrate, carbonate, chloride, bromide, cyanide and sulfate. (ii) increasing atomic number in the horizontal rows. Fluorine (y) The most non-metallic element from elements S, P, Cl and Ar.

The atomic number of calcium is 20 and its atomic mass is 40.078 grams per mole. Chlorine is the non-metallic chemical element of atomic number 17, symbol Cl, atomic weight 35.45, melting point 149.8 F ( 101 C), and boiling point 29.02 F ( 33.9 C).

Alkali Metals. Phosphorus was first discovered in 1669 by German physician Hennig Brand (ca.

Answer explained : So, if we look at the periodic table, potassium has a charge of +1.

The elements of group 13 are B, Al, Ga, In or Tl.

Uses and properties. Explain. Which element classes do potassium and chlorine belong to? Answer: (a) All other elements have same valence electrons and their valency is 3.

As the number of occupied shells is 3 (since electrons are filled in K, L and M shells), the element belongs to third period. b.

It was used as a war gas in 1915.

-don't say "to get to the other side" This is to say the most sense and creative answer for my class"Physic Jokes" BRAINLIEST+10PTS: does ozone absorb just harmful UV rays? Answer explained : So, if we look at the periodic table, potassium has a charge of +1. Answer: The element belongs to period 4.

But potassium atom has only s orbital in the ground state.

Image explanation. The truth is that atomic weights have changed as a function of time.

They i.e.,

All the Group 1 elements lithium (Li), sodium (Na), potassium (K), Potassium is one of the alkali metals.

Step 3: Check if the given element belongs to the non-metal group. The electronic configuration of element B (atomic number 17) would be 2, 8, 7. Question 18.

Question 5.

Compare elements on more than 90 properties.

(AS2) Answer: The valency of 13 th group elements is 3. in the outer shell of all the elements in a group is the same as the group number. In Modern Periodic Table, what is common among all the elements in a group?

Answer: (A) As the number of valence electrons in the given element is 4, it belongs to Group 14 of the Modern Periodic Table. >. B) decreasing atomic number.

For example, in the mineral hematite (Fe 2 O 3), the cation is Fe 3 + (iron) and the anion is O 2 (oxygen).

The element D belongs to lanthanides, lies in the 6th period, and belongs to/-block of elements. Chlorine is yellowy-green in colour, as is the image. Answer: a. Na, K are alkali metals.

So Fluorine, Bromine, Iodine, and Astatine have similar properties as chlorine. The salts in the ocean contain the elements sodium, chlorine, sulfur, magnesium, calcium, and potassium.

Groups are numbered 118 from left to right. Advertisement CHICKEN CROSS THE ROAD? National Library of Medicine.

>. Answer: b.

Eight of these oddities are Au (gold), Ag (silver), Cu (copper), FE (iron), SN (tin), Pb (lead), Sb (antimony), and Hg (mercury): All were among the elements recognized by the ancient Greeks and Romans, and the abbreviations for those are based on a Latin or Greek term for the element. Determine its valency.

The arrangement of elements in the Modem Periodic Table is based on their. The element with atomic number 46 belongs to d-block.

Expert Answer. View solution. Chlorine belongs to Halogen family.

The most distinctive property of the noble gases is that they are: 2. Highly reactive, with reactivity increasing moving down the group.

Ans. Element A is K (Potassium). All of them belong to group I and are alkali metals.

Chlorine is a chemical element with atomic number 17 which means there are 17 protons in its nucleus. Question 6.

Answer link. Potassium (x) The element with maximum non-metallic character from the element of period-2 Ans.

Answer the following questions in one sentence each: Question 1. A metalloid is an element that has properties that belong to both metals and non-metals.

The chemical symbol for Potassium is K. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. Answer: d. 15.

The periodic table is a chart that shows how chemical elements are related to one another.

Q8. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The symbol shows a gas mask.

They are among the most active metals.

Answer (1 of 5): Hey! In the following set of elements, which one of the following element does not belong to the set.

We hope this article on Group 17 Elements has helped you.

Expert Answers.

Write the electronic configuration for these elements. what is the net charge of an anion? We know, Phosphorus ( P) belongs to group 15 , Sulphur (S) belongs to group 16 and chlorine belongs to group ( 17) .

Out of these, lithium, beryllium and boron are metals, because they have 1, 2 and 3 electrons respectively in their outermost shells.

Gallium is placed in group 13 and period 4 in the modern periodic table.

One loosely bound valence electron. (B) Germanium is placed in group 14 and period 4 in the modern periodic table.

This element is more reactive than lithium and magnesium but less reactive than potassium. Calcium is in Period 4. (c) Group 1 elements are called alkali metals. (iv) increasing atomic mass in the group.

Boron has atomic number 5, and is quite rare, constituting only 0.001 percent of Earth's crust.

Or just a random portion of UV? The compounds of the s-block elements, with the exception of those of lithium.

(f) According to Newland's classification of elements, the properties of sulphur are similar to those of oxygen The chlorine atom also belongs to the halogen family group.

Sodium and aluminium have atomic numbers 11 and 13, respectively.

(b) The horizontal rows in a periodic table are called periods.

Chlorine (z) The element with highest ionisation potential from the elements of period 1, 2, and 3 Ans. (a) 7.

Nitrogen (atomic number 7) and phosphorus (atomic number 1 5) belong to the group 1 5 of the Periodic Table. 4,18,924. b.

A) Increasing atomic number. Such was the case when IUPAC recently reviewed elements 113, 115, 117 and 118, and decided to give them official names and symbols (goodbye, ununseptium and hello, tennessine!). The Periodic Classification of Elements MCQ Class 10 Science provided below covers all important topics given in this chapter. The gas irritates the mucous membranes and the liquid burns the skin. Potassium is an essential constituent for plant growth and it is found in most soils. 2. Less dense than other metals. B) Calcium.

Which class do these elements belong to?

Carbon belongs to the second period and Group 14.

If atomic number of carbon is 6, the atomic number of silicon is. The elements of a group have similar chemical properties but in a period they have different chemical properties. As it has only one valence electron therefore it must be a metal.

Potassium chloride is an ionic salt featuring a bond between an alkali metal and a halogen. The periodic table is a chart that that shows how chemical elements are related to each other.

Calcium is a chemical element and its symbol is Ca.

Answer: (a) The basis for the modern periodic table is the atomic number. d) increasing atomic mass in the group. Low electronegativity.

The element itself, however, is much less common for the general public. Uses.

Pick out the two elements which are known as alkali metals.

Write the atomic numbers of two elements X and Y having electronic configurations 2, 8, 2 and 2, 8, 6 respectively. The nucleus is composed of protons and neutrons.

If you have any queries, drop a To which group and period does this element belong? D) Potassium. Potassium is a metal and is the seventh most abundant and makes up about 1.5 % by weight of the earth's crust. (i) increasing atomic mass in the period. a) increasing atomic mass in the period.

A soft, silvery metal that tarnishes in air within minutes.

Periodic Classification of Elements MCQs: 10 Science Ch 5. Answer: The first ten elements in modern periodic table are hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.

As we move from left to right in a period in modern periodic table, Atomic sizes of the elements generally.

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One common method is based on the specific elements present. Answer: Lithium, sodium and potassium have 1 electron each in their outermost shells.

Question. Chlorine (iv) That is the most reactive metal. Consider the elements lithium (Li), sodium (Na) and potassiu m (K) which are present in the second column of Newlands' classification of elements. It is denoted by the chemical formula KCl and is made up of potassium cations and chloride anions in a 1:1 ratio.

Classification.

The arrangement of elements in the Modem Periodic Table is based on their. Number of valence electrons in Y is 7.

C) Cobalt.

Give reason to your answer. b.

Write the symbol of element which belongs to (a) group 13, (b) group 15 of the periodic table. Answer : The group number for elements can be identified as 10 + number of valence electrons. Look up properties, history, uses, and more. Click on the 'View Image' button to see a periodic table. Answer: Chlorine is in group 17 of periodic table, also called the halogens, and is not found as the element in nature - An atom of an element has the electronic confi-guration 2,8,2.

View the full answer. Click on the 'View Image' button to see a periodic table.

cations and anions are released into the solution.

Consider the elements lithium (Li), sodium (Na) and potassiu m (K) which are present in the second column of Newlands' classification of elements.

Question 14. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs.

Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure.

Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. The element chlorine is a very abundant element, which is encountered in many compounds, known from everyday life.

2) One element of this period is missing.

Sodium Chloride The two elements that we added together were Sodium and Chlorine. Potassium carbonate is used in the manufacture of glass.

19. Read more about the Position of Hydrogen in Periodic Table, here. Question 21.

Pick out the two elements which have valency of 4. c. Pick out two elements which belong to group 16 of the periodic table. We group minerals into classes on the basis of their predominant anion or anion It is an alkaline earth metal. 11.

Answer: Chlorine, fluorine and bromine are kept in the same group in the Modern Periodic Table.

Element A with 3 valence electrons will show valency 3 and should belong to group 13. National Institutes of Health. Match the items on the right to the items on the left.

Answer (1 of 46): The Halogens or Halogen Family refers to the 17th group in the Periodic Table. For example, Sodium, potassium, lithium, rubidium, and caesium have similar chemical properties. The elements of a periodic table are given below in the order from left to right. This makes Sodium Chloride Sodium is number 11 on the Periodic table and Chlorine is number 17 on the Periodic table. Uses. Also See: CBSE Class 10 Hindi MCQs.

What element is in group 17 period 3? Chemical compounds may be classified according to several different criteria. Similarly, the chemical characteristics of eight sodium elements are potassium, lithium, sodium, and potassium. As little as 3.5 ppm can be detected as an odour, and 1000 ppm is likely to be fatal after a few deep breaths. (c) A has one valence electron and hence, it belongs to the first group. Low ionization energy.

What element is in group 17 period 3? Test your Knowledge on 118 Elements Their Symbols Atomic Numbers.

Answer: The 2 shows the number of potassium ions present in the compound, and the 2 is needed to show that 2 potassiums are needed to balance the charge on the sulphur ion. Q14- According to Mendeleevs Periodic law, the elements were arranged in Periodic table according to .

What type of bond will be formed between them and why? The greatest demand for potassium compounds is in fertilisers.

Answer: All elements belonging to group 1 have one electron in the valence shell while all elements belonging to group 2 have two electrons in their valence shell.

Chlorine kills bacteria it is a disinfectant. But it falls as the second element in the periodic table.

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It was first isolated from potash, the ashes of plants, from which

Answer (1 of 5): Hey! The classic Periodic Table organizes the chemical elements according to the number of protons that each has in its atomic nucleus.

Chlorine is a member of the halogen (salt-forming) group of elements. You can find them in Group 17 of the Periodic Table. They include fluorine, chlorine, bromine, iodine and astatine.

Q.5. The element itself, however, is much less common for the general public. 104. The alkali metals also include lithium, sodium, rubidium, cesium, and francium.

to which element classes to potassium and chlorine belong to?

which element classes do potassium and chlorine belong todoes reheating cold potatoes destroy resistant starch

which element classes do potassium and chlorine belong to