Which non-metal is a liquid at room temperature

The only nonmetal that is liquid at room temperature is the element Br or Bromine. When we say at room temperature, it means at zero degrees Celsius and at one atmospheric pressure. The metal that is liquid at room temperature is the element Hg or mercury.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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