Which subatomic particle is not present in an ordinary hydrogen atom ?

Describe Thomson's plum pudding model. Which subatomic particle was not present in this model of the atom?

On the basis of Rutherford model of an atom, which sub-atomic particle is present in the nuclear of an atom?

The subatomic particle which is not present in hydrogen atom is _______.

(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?

On the basis of Rutherford's model of an atom, which subatomic particle is present in the nucleus of an atom ?

On the basis of Rutherford's model of an atom, which subatomic particle is present in the nucleus of an atom ?