Which of the following pairs of elements is most likely to form a covalent bond?

Select one:

a. Ca and O, (b) CS AND BR (C) CI AND S (d) Mg and N

b. How many electrons must calcium lose before it can reach a stable electronic configuration?

c.Indicate the charge gained by a rubidium atom after forming an ion

d.Which of the following pairs of elements is most likely to form an ionic bond?

e. Which of the following pairs of elements is most likely to form an ionic bond? C and O, C and Br,Cl and S, mg and N

f) Which of the following has a stable configuration? S,CL,Br,cl+

g)When an atom of nitrogen forms an ion, it is represented by

h)Which of the following pairs of elements is most likely to form a covalent bond? Ba and N, P and Br, Ca and O, Cs and Br

i) Which of the following pairs of elements is most likely to form an ionic bond?Ba and N, P and Br, Ca and O, C and Br 

j)The first ionization energy of a Br atom is ____ the first ionization energy of a I atom. smaller than, equal to,larger than or inverted from