Question

two elements are represented as 24/12 Q and 23/11 R .
1. identify Q and R. write their symbols
2.Write electronic configuration of Q and R.
3.what are the atomic number of Q and R?

Answer 1

1.Q is magnesium and R is sodium.symbols magnesium mg,sodium Na.
2.Q:2,8,2.R:2,8,1
3.Q:12 and R:11