General Science - Physics (Basics)
Which element has an atomic number of 12 and belongs to Group 2 in the periodic table?
Which element has an atomic number of 12 and belongs to Group 2 in the periodic table?
medium Q15 of 15
Step-by-Step Solution
Step 1: Identify atomic number and group
The question requires matching atomic number 12 with Group 2 elements (alkaline earth metals).Step 2: Recall element details
Magnesium has atomic number 12 and is in Group 2. Aluminium is Group 13, Sodium is Group 1, and Calcium is Group 2 but atomic number 20.Final Answer:
Magnesium → Option BQuick Check:
Atomic number 12, Group 2 = Magnesium ✅
Quick Trick: Group 2 elements include Magnesium (12) and Calcium (20).
Common Mistakes:
- Confusing Calcium with Magnesium due to both being Group 2 metals.
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