Question

a) wrire the mass number of particle A,B,and c

b) select a cation and anion from the above table​

Answer 1

1.A=4+5=9

B=9+11=20

C=8+8=16

2.cation: are positively charge particles

therefore,4,9,8 are cations

anion:are negatively charge particles

therefore,3,11,8 are anions