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4.)The red dot is a valence electron (negative charge) , the blue dot is a proton (positively charged), the white dot is a neutron (Neutrally charged).

  A.) the atom is carbon, because it has 6 protons in the nucleus

  B.) the atom has 4 valence electrons.

5.) C.) negatively charged ions (because adding negatively charge electrons makes the atom negatively charged)

6.) lithium has 4 neutrons and 3 protons.

carbon has 6 protons and 6 neutrons

Neon has 10 neutrons and 10 protons

Sodium has 11 protons and 12 neutrons

By the way, the atomic number is the same as the number of protons in the atom. You can find the atomic mass by looking at a periodic table or by looking at the internet.

Explanation:

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links? do you have a link? i don't see anything?