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?

3 answers

on the lasr: what does mass energy equivalence mean?
Ah, I see, I confused matter with mass.
It's True for the last one