Chemical Bonding — Test

Question 1 • Physical Science

What best explains whether bromine Br or neon Ne is more likely to form a covalent bond?

Answer

Neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron.

Neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.

Bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule.

Bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons.

Explanation

Bromine has seven valence electrons, so it can share electrons in covalent bonds to complete its outer shell. Neon already has a full valence shell with eight electrons, making it unlikely to form bonds. Therefore, choice C correctly explains why bromine is more likely to form a covalent bond.

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