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Noble Gases and Octet Rule

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Questions and Answers

What is the octet rule in chemistry?

It states that the valence shell of noble gases contains eight electrons.

It states that atoms lose, gain, or share electrons to attain the electronic configuration ns2np6 of the nearest noble gas. (correct)

It states that all atoms have eight valence electrons.

It states that atoms bond to attain the ns2np6 electron configuration of the nearest noble gas.

Why are noble gases generally unreactive?

Due to their high ionization energies and low electron affinity. (correct)

Because they have empty valence shells.

Due to their strong attraction to other atoms.

Because they tend to lose electrons in reactions.

What is the key role of the valence electrons in chemical bonding?

To form ionic bonds.

To participate in covalent bonds. (correct)

To attract other atoms.

To lose or gain electrons.

Why do atoms combine to form compounds?

To achieve a stable electron configuration by sharing, losing, or gaining electrons. Signup and view all the answers

What characteristic makes main-group monoatomic ions similar to noble gases?

They have a filled outer level of electrons, similar to noble gases. Signup and view all the answers

What is the main purpose of atoms combining to form compounds?

To decrease potential energy Signup and view all the answers

In an ionic bond, what type of elements typically participate?

An electropositive element and an electronegative element Signup and view all the answers

What happens when an atom loses electrons in an ionic bond?

It becomes a cation Signup and view all the answers

Which type of bond results from the sharing of valence electrons?

Covalent bond Signup and view all the answers

Why do most atoms form chemical bonds with each other?

To create more stable arrangements by decreasing potential energy Signup and view all the answers