Which one of the following compounds does NOT obey the "octet rule"? A. LiF
B. BF3
C. H20
D. CBr4

Which of these best describes an ionic bond?

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5