Question

Write 2 examples of the following

(a) Monoatomic Non-metals.

(b) Diatomic Non-metals

(c) Monoatomic Metals.

(d) Monoatomic ions

(e) Polyatomic ions.

Answer 1

Answer:

ANSWER

Monoatomic:- The elements that have only one atom in molecule are called monoatomic elements. They are stable. Example:- Ne,Ar all are Noble gases.

Diatomic:- The elements that have two atoms are called as diatomic molecules. Example:- Oxygen.

Triatomic:- The elements that have three atoms are called as tri-atomic elements. They are unstable. Example:- Ozone.

Polyatomic:- The elements that have more than two atoms bonded by a covalent bond are reffered to as polyatomic elements. Example:- Selenium.

Explanation:

Answer 2

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a)include the chloride ion, Cl−, the nitride ion, N3−, and the selenide ion, Se2−.

b)hydrogen, nitrogen, oxygen, fluorine, and chlorine—

c)

helium (He)

neon (Ne)

argon (Ar)

krypton (Kr)

xenon (Xe)

radon (Rn)

oganesson (Og)

d)The monatomic ions that compose salt are sodium (Na+) and chlorine (Cl-)

e)nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.

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