Question

An element X has electronic configuration 2,8,8, 2. Without identifying X, predict the sign and charge of a simple ion of X.​

Answer 1

Answer :—

If Element X's electronic Configuration is ( 2 , 8 , 8 , 2 ) .

It means X's Atomic Number will be 20 .

• Sign ( symbol ) of X $\longrightarrow$ Ca.

• Charge of Simple ion X $\longrightarrow$ 2+ .