D - Silicon
This is because Silicon has four electrons as indicated by the group it's in. Chlorine would have 7, Magnesium would have 2, Phosphorous would have 5, and Sulfur would have 6.
Hope this helps!
Is should be the second one sorry if im wrong
Answer:
c) a readily corroded silvery solid that fizzes with water ... (e) an orange high melting solid and good electrical conductor. (f) soft low melting ...
Explanation:
Answer:17
Explanation:NH3 = 14 + 3 = 17 g/mole.
B - The reactants are the starting substances and the products are the end substances.