Question

what is the name for mgbr₂?
magnesium bromine
dimagnesium bromide
magnesium bromide
question 8
which of the following elements would you expect to lose one electron?
potassium (k)
fluorine (f)
chlorine (cl)

Explanation:

For the first question, in naming ionic compounds like \(MgBr_2\), the metal (magnesium, \(Mg\)) is named first, and the non - metal (bromine, \(Br\)) is changed to the - ide ending (bromide). Magnesium has a fixed charge (\(+ 2\)) in its common ionic form, so we don't need prefixes like "di -". For the second question, potassium (\(K\)) is in Group 1 of the periodic table. Elements in Group 1 have one valence electron and tend to lose that one electron to achieve a stable electron configuration. Fluorine (\(F\)) and chlorine (\(Cl\)) are in Group 17 and tend to gain one electron.

Answer:

For the first question: Magnesium bromide. For the second question: Potassium (K).