Question

what happen when a part of nucleus is removed from the atom​

Answer 1

Answer:

When you remove or add a neutron to the nucleus of an atom, you don’t technically get a new element, but you do have a new type of the same element in your hand. This new type is called an “isotope” of the element. Isotopes are formally defined as elements with the same number of protons, but a different number of neutrons in the nucleus.

Answer 2

Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number. So, adding or removing protons from the nucleus changes what element that atom is! For example, adding a proton to the nucleus of an atom of hydrogen creates an atom of helium.