The atomic number of an element is determined by the number of electrons in the nucleus of the atom.

True
False***

The motion of electrons can be predicted precisely.
True
False***

Leptons are found in the nucleus of atoms.
True
False***

Matter can change its form but it cannot be destroyed.
True***
False

Are these correct?

on the lasr: what does mass energy equivalence mean?

Ah, I see, I confused matter with mass.

It's True for the last one

Yes, these statements are correct except for the last one. Matter can change its form and it can also be destroyed through processes such as nuclear reactions where matter is converted into energy. So the correct answer is False.