Answer and show all work please

1. An iodine atom has seven valence electrons. Do you think it will lose seven electrons or gain one electron to obtain an octet in its outermost electron shell? 2. What characteristic charge do atoms in the second column of the periodic table have when they become ions? 3. Write the chemical formula for the ionic compound formed by each pair of ions. 1. Li and N 2. Mg2 and P 3. Li and P. 4. Write the chemical formula for the ionic compound formed by each pair of ions. 1. NH4 and NO3 2. H and Cr2; 3. Cu+and CO2 5. Name the ionic compound formed by each pair of ions. 1. K and Cl 2. Mg2 and Cl 3. Mg2 and Se2 6. Name the ionic compound formed by each pair of ions. 1. Cr3 and O 2. Cr3 and O2 3. Pband al 4. Pb+and Cl 7. What is the atomic weight, in amu, for each compound? 1. Co(HCO)), 2. LiHCO1 8. The uranyl ion ( UO22) is a common water-soluble form of uranium. What is the chemical formula of the ionic compound uranyl nitrate? What is the chemical formula of the ionic compound uranyl phosphate? 9. Which ion with a 2+ charge has the following electron configuration? Is 2s22p 10. What is the electron configuration of each ion? 1. Li 2. Ca2 3. Cl 4. O2