Question

Identify the halogen whose anion contains 36 electrons.

He
P
Li
Mg
Br
I
O
Na
Cl
Ne
Ar
C
F
N

Answer 1

Fluorine is the halogen whose anion contains 36 electrons. When fluorine accepts an electron, it becomes the fluoride ion with an overall negative charge.

Step-by-step explanation:

Fluorine (F) is the halogen whose anion contains 36 electrons. In its neutral state, fluorine has 9 protons and 9 electrons. Since fluorine is in Group 17, it only needs one more electron to achieve a stable electron configuration like a noble gas. So, when fluorine accepts an electron, it becomes the fluoride ion (F-) with 10 electrons and an overall negative charge.