Question

if a dipositive Ion of an element X consists of 12 protons and 12 neutrons and another dipositive Ion of an element Y consists of 18 electrons and twice the number of electrons of the positive Ion X is the number of neutrons of Y. then the mass numbers would be in the ratio of
a )1:2
b)3:5
c)12:19
d)2:3

Answer 1

c is the right aanswer......i hope it helps

Answer 2

Answer:

X=No of protons=12 (Z)

Neutrons=12

No of electrons =10

A=12+12=24

Y=20electrons or 20 protons

A=20+20=40

A ratio B

24ratio 40

3 ratio 5 is the answer