Chemistry - Atoms & Matter: Warm-Up
NAME: _________________________
BLOCK: _________
DATE: _______
Directions: Choose from protons, neutrons, electrons, or protons & neutrons to answer
each question.
1. Which subatomic particles have a negative charge?
Electrons
2. What subatomic particles are contained in the nucleus?
Protons and neutrons
3. Which subatomic particles have a positive charge?
Protons
4. The atomic mass of an atom is the same as its number of …
.protons and neutrons
5. Which subatomic particles are not found in the nucleus?
Electrons
6. Which subatomic particles are neutral?
Neutrons
7. The atomic number of an atom is the same as its number of ...
Number of electrons
8. Which subatomic particles have nearly the same mass as protons?
neutron
9. The number of ________ is equal to the number of electrons.
10. Atoms are made up of three subatomic particles- name them.
Protons ,neutrons and electrons