Question

an element X has mass number 28 and atomic number 14 . how many neutrons does its atom contain.​

Answer 1

Answer:

IT CARRY -4 NEUTRON (SILICON! )

Answer 2

Answer:

Explanation:

so mass number is 28

atomic number,Z=14

and,atomic number=number of protons=14

mass no. -no. of protons=no. of neutrons

so 28-14=14 is answer