Question

The atom of an element is made up of 4 protons ,5neutronsand 4 electrons.What is its atomic number and mass number

Answer 1

Answer:

Explanation:

Atomic no. =no. Of proton =4

Mass no. = neutron +proton =5+4 =9

Answer 2

HEY MATE!

Atomic number is actually total number of protons or total number of electrons in the atom.

Therefore, atomic number = 4.

Mass number is basically number of neutrons plus number of protons.

Hence, mass number = 5+4 = 9

HOPE IT HELPS

HAKUNA MATATA :))