Please tell me if the below chemistry statements are true or false.?

1. The nucleus accounts for almost all the volume of an atom.


2. The nucleus can be positively or negatively charged, depending on the identity of the atom.


3. The nucleus of an atom contains an equal number of protons, neutrons, and electrons.


4. The nucleus of an atom is always positively charged.Please tell me if the below chemistry statements are true or false.?
4 is the only true statement. Most of the volume of an atom consists of electron orbitals. The nucleus of a neutral atom contains an equal number of protons and electrons, but not neutrons. Atoms become charged when they loose or gain electrons.Please tell me if the below chemistry statements are true or false.?
false


false


false


true