Item 4 the identity of an element depends on the number of

The identity of an element depends on the number of protons, neutrons, and electrons.

Explanation:

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge