What best explains how they should complete the table? with “Inside the nucleus,” because the particle is a proton
with “Inside the nucleus,” because the particle is a neutron
with “Outside the nucleus,” because the particle is a proton
with “Outside the nucleus,” because the particle is an electron

Explanation:

An atom is made up of three fundamental subatomic particles which are:

Protons are the positively charged particles in an atom. They are found in the nucleus of the atom.

Neutrons do not carry any charges, like the protons, they occupy the tiny nuclear space.

Electrons are positively charged particles and they occupy the extra-nuclear space of the atom.

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.

that's it!

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