TS EAMCET 03 May 2019 Shift 2 Solved Paper

The ions in NaCl(Na+) at its face centre and corners are given as,
⇒3+1=4Na+ units
The ions in NaCl(Cl−) at its face centre and corners are given as
⇒3+1=4Cl− units
Thus, combing them we get 4 units of Na+Cl−