MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryPeriodic PropertiesModern Periodic Table
The element whose electronic configuration is 1s2, 2s2, 2p6, 3s2 is
A.metal✓ Correct
B.metalloid
C.inert gas
D.non – metal
Explanation
The given electronic configuration is- 2 2 6 2 1 2 2 3 s s p s The atomic number becomes 12 and Magnesium will be the required element that is a metal. Thus, the correct answer is (a)
Practice More Like This
Take chapter-wise tests, track your progress, and master Periodic Properties.
Start Free Practice →