Question

Magnesium is a member of which group of the periodic table ?

• A. Group VIII
• B. Group I
• C. Group II
• D. Nonmetallic element

Hint:

For the main group elements, the number of valence electrons directly tells you the group. 1 valence electron = Group 1 (Alkali Metals), 2 valence electrons = Group 2 (Alkaline Earth Metals).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The group number of an element in the periodic table is determined by its number of valence electrons.

Step 2: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{The element Magnesium (Mg) has an atomic number of 12.} \\ \bullet & \text{Its electronic configuration is 2, 8, 2.} \\ \bullet & \text{It has 2 electrons in its outermost shell (valence shell).} \\ \bullet & \text{Elements with 2 valence electrons belong to Group 2 of the periodic table.} \\ \bullet & \text{Group 2 elements are also known as the Alkaline Earth Metals.} \\ \bullet & \text{Option (D) is incorrect as Magnesium is a metal.} \\ \end{array}\]

Step 3: Final Answer:
Magnesium is a member of Group II (or Group 2) of the periodic table.