Atoms and Subatomic Particles

What is the smallest subatomic particle that all matter is made of?

• Protons

• Electrons

• Neutrons

• Nucleus

Where are protons found in an atom?

• Nucleus

• Electrons

• Neutrons

• Bohr model

What is the charge of protons?

• Positive

• Negative

• No charge

• Neutral

What is the charge of an electron?

• Positive

• Negative

• No charge

• Neutral

What is the charge of a neutron?

• Positive

• Negative

• No charge

• Neutral

Where are electrons located in an atom?

• In the nucleus

• With protons

• With neutrons

• In orbit of the nucleus.

What is the Atomic Mass Number?

• The total number of Protons and Neutrons found in an atom's nucleus.

• The total number of Protons and Electrons found in an atom.

• The total number of Electrons and Neutrons found in an atom.

• The total number of Protons, Neutrons, and Electrons found in an atom.

What is the relationship between the number of protons and the number of electrons in an atom?

• They are equal

• They are opposite

• They are random

• They are unrelated

What is the atomic mass number of an atom with 20 protons and 3 neutrons?

• 23

• 22

• 21

• 20

What is the atomic mass number of an atom with 6 protons and no neutrons?

(a)  

• 6
• 5

• 4

• 3