Choose the word that best completes the sentence. Column A

1.

The positive subatomic particle is called the:

The positive subatomic particle is called the

2.

The negative subatomic particle is called the:

The negative subatomic particle is called the

3.

The neutral subatomic particle is called the:

The neutral subatomic particle is called the

Column B

a. neutron

b. electron

c. protist

d. proton

e. eukaryote

1. proton

protist

2. electron

eukaryote

3. neutron

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!

if you need further assistance, let me know: )

~ trueboss72