C. WRITE TURE OR FALSE FOR EACH STATEMENT. REWRITE THE FALSE STATEMENTS CORRECTLY :
1. The nucleus of an atom is positively charged.
2. Atomic number is the number of protons and electrons.
3. Alpha particles carry two units of positive charge and four units of mass.
4. Gamma particles have no charge and mass.
5. The number of protons and neutrons in an atom is called the mass number.
6. Protons have 1.602 x 10-19 C of positive units.
7. Neutrons are negatively charged particles.
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8. Neutrons were discovered by Chadwick.​