Which of these contain a polyatomic ion? Mark all that apply. A sodium nitride -- Na₃N

B sodium chloride -- NaCl

C sodium bicarbonate -- NaHCO₃

D sodium sulfate -- Na₂SO₄

E sodium hydroxide -- NaOH

F sodium oxide -- Na₂O

Options d contain polyatomic ion...

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

answer; talc and gypsum;