Question

what are atomic and mass number? plz guys​

Answer 1

Answer:

The number of protons determines an element's atomic number and is used to distinguish one element from another. ... Together, the number of protons and the number of neutrons determine an element's mass number

Answer 2

Answer:

The number of protons determines an element's atomic number. While the number of protons and the number of neutrons determine an element's mass number

Atomic no. = No. of P (Protons)

Mass no. = No. of P (Proton) + No. of N (Neutron)