Chemistry, asked by balharpreet77, 11 months ago

calculate the mass number of element x if it has number of proton is 9 and number and number of neutron is 9​

Answers

Answered by mallickmadhusmita194
1

Answer:

18is the mass no. of the element x

Answered by rakeshprasadkr75
1

Answer:

mass number is 1mass number equal to mass of proton plus mass of neutronis equal to 18

Similar questions