A and C are incorrect because they are not complete transfer of valence electrons. Ionic bonds best to form a neutral molecule
Because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.
NaHCO3 is the right answer
Answer:
1. the group number of sodium is 1 and it is a metal
2. the group number of helium is 18 and it is a nonmetal
3. the group number of iodine is 17 and it is a nonmetal
4.the group number of calcium is 2 and it is a metal
5. lithium has similar properties to potassium
6. calcium has similar properties to magnesium
7. neon has similar properties to xenon
8. Iodine has similar properties to chlorine
