Answer
A) 2+
B) 3-
C) 1-
D) 1+
Work Step by Step
PART A: Magnesium is located in Group 2A. Therefore, it needs to lose two electrons in order to achieve a noble gas electron configuration. Thus, it is expected to form a 2+ charge.
PART B: Nitrogen is located in Group SA. Therefore, it needs to gain three electrons in order to achieve a noble gas electron configuration. Thus, it is expected to form a 3— charge.
PART C: Fluorine is located in Group 7A. Therefore, it needs to gain one electron in order to achieve a noble gas electron configuration. Thus, it is expected to form a 1— charge.
PART D: Sodium is located in Group 1A. Therefore, it needs to lose one electron in order to achieve a noble gas electron configuration. Thus, it is expected to form a 1+ charge.
