Which of the following subatomic particles is present in equal numbers in a neutral atom?

Q. Which $2$ subatomic particle are equal in number in a neutral atom?

Q. About the number of subatomic particles in an ion of ${}_{16}^{32}{S}^{2-}$, which is/are true?

Q. Which of the following are correct about the subatomic particles found in ${}^{37}{Cl}^{-}$?
i. 21 neutrons
ii. 17 protons
iii. 16 electrons

Q. (a) Describe Thomson's model of the atom. Which subatomic particle was not present in Thomson's model of the atom?
​(b) The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?

Q. For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.