Question

2. (a) What are inert elements ?
(b) Why do they exist as monoatoms in molecules?
(c) What are valence electrons ?​

Answer 1

Answer:

Hey mate,

Your answers are as follows:

2. (a) In chemistry, the term chemically inert is used to describe a substance that is not chemically reactive. Most Group 8 or 18 elements that appear in the last column of the periodic table (Helium, Neon, Argon, Krypton, Xenon and Radon) are classified as inert (or unreactive).

(b) As they have their valence shell completed so they don't need to share or give or gain electrons . So they exist as monoatoms. Because they have valency 0 so they are less reactive in nature and their outer shell is completely filled so they don't combine with others so they are monoatom in nature.

(c) A valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

Explanation:

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Answer 2

Answer:

Hey mate here is your answer....

Explanation:

(a). An inert element is a substance that

is not generally reactive or inactive.

(b). Because they have their valence shell completed so they don't share, give or gain electrons.

(c). A valence electron is an outer shell electron that is associated with an atom, and that can participate in the chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

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