Which element easily gains one electron to form a negative ion? A. Magnesium (Mg)

B. Fluorine (F)

C. Lithium (Li)

D. Nitrogen (N)

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

The think of process to make something successful