Two electrons in it's first energy level; eight electrons in it's second energy level; and six valence electrons in it's outermost energy level
Answer:
Rb > K > Na > Li
Explanation:
Ionization energy increases up the period and up the group.
From the periodic table, we can see that Li is the going to have the highest ionization energy and Rb is going to have the lowest.
Therefore, the correct answer is the first choice
Answer:
I think it is a covalent bon
the answer is in the picture, btw the molar mass for the first one is wrong, it should be 77.98, and the final product is 2.32