1. Select all the statements about the nucleus of the atom that are correct: Group of answer choices

A. It has a Negative Charge

B. It contains Protons

C. It contains Electrons

D. It has a Positive Charge

E. It contains Neutrons

F. It has No Charge

2. An atom of an element with atomic number 50 and mass number 120 contains:
Group of answer choices

A. 50 protons, 50 electrons, and 120 neutrons

B. 50 protons, 50 electrons, and 70 neutrons

C. 70 protons, 70 electrons, and 50 neutrons

D. 50 protons, 70 electrons, and 50 neutrons

3. Which of these statements is false?

Group of answer choices

A. Protons have a positive charge.

B. The neutron is found in the nucleus of an atom.

C. The nucleus of an atom is positively charged.

D. Electrons have the same mass as a proton but have the opposite charge.