1-Which is a true statement? The nucleus is found in the center of atoms and contain protons and electrons
The nucleus is found in the center of atoms and contain protons and neutrons
Electrons have a neutral charge
Neutrons have a negative charge

2-What is the role of electrons within an atom?
Electrons are in the nucleus and have a negative charge
Electrons are in the nucleus and have a positive charge
Electrons are outside nucleus and have a negative charge
Electrons are outside nucleus and have a positive charge