Physical Science Chapter 4 Test

Which particle is NOT found in the nucleus?

• protons
• neutrons
• electrons
• all are found in the nucleus

Which particle has a positive charge?

• protons
• neutrons
• electrons
• none have a positive charge

The atomic number tells the number of _____ in an atom.

• protons
• neutrons
• electrons
• valence electrons

Which particle has a negative charge?

• protons
• neutrons
• electrons
• nucleus

The mass number minus the atomic number equals  _____.

• the number of protons
• the number of neutrons
• the number of electrons
• the total charge of the atom

Each element has a unique number of _____.

• protons
• neutrons
• electrons
• charges

Which subatomic particle has the least mass?

• protons
• neutrons
• electrons
• nucleus

What type of charge does an atom have?

• positive

• negative

• neutral

• it depends on the number of neutrons in the nucleus

An atom that has a neutral charge has an equal number of _____.

• protons and electrons
• protons and neutrons
• neutrons and electrons
• protons, neutrons, and electrons

The mass number is the total of _____.

• protons and electrons
• protons and neutrons
• neutrons and electrons
• protons, neutrons, and electrons