Question

Name two particles which determine the mass of an atom ?
Ans. proton & neutron ​

Answer 1

Explanation:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number

Answer 2

$\huge\colorbox{orange}{Hi࿐ }$

$\huge\colorbox{aqua}{Ãn§wer࿐ ❤}$

$\pink{ ❐ }$The number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Subatomic particles include electrons, the negatively charged, almost massless particles that nevertheless account for most of the size of the atom, and they include the heavier building blocks of the small but very dense nucleus of the atom, the positively charged protons and the electrically neutral neutrons.

So,. Answer is Proton and Neutron