How many electrons are present in 20X^2+?

How many electrons are present in 20X^2+? 

A. 22

B. 20

C. 2

D. 18

The symbol ₂₀X²⁺ means:

• Atomic number of X = 20 → neutral atom has 20 electrons

• Charge = 2⁺ → the atom has lost 2 electrons

So, number of electrons =
( 20 - 2 = 18 )

✅ Correct answer: D. 18

PQN: 36