Question

Among n 3 -,o 2 -, f -,na+, mg 2 +, and a3 + which is common in them

Answer 1

Answer:

each of the ions has same no of electrons .

n3- has 7+3= 10 electrons { N = atomic no = 7}

o2- has 8+2=10 electrons { O = atomic no = 8}

f-     has 9+1=10 electrons { F = atomic no = 9}

na+ has 11-1= 10 electrons { Na = atomic no = 11}

mg 2+ has 12-2 = 10 electrons { Mg = atomic no = 12}

al3+ has 13-3 =10 electrons { Al = atomic no = 13}