Untitled Quiz

1. A particle that moves around the nucleus of an atom is an _______.

• Proton

• Neutron

• Electron

• Quark

2. Particles in an atom that are neutral which means they have no charge are __________.

• Protons

• Neutrons

• Electrons

• Negatrons

3. The positive particles of an atom are called _______.

• Electrons

• Positrons

• Neutrons

• Protons

4. All matter is made of ______.

• Energy

• Atoms

• Electrons

• Compound

5. What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• DNA and RN

In terms of matter, the matter is almost entirely filled with _____.

• Orbiting electrons

• Charged protons

• Heavy neutrons

• Empty space

An element is determined by the number of:

• Atoms

• Neutrons

• Electrons

• Protons

Of the three subatomic particles, which is the smallest and the lightest?

• Protons

• Neutrons

• Electrons

• They are all equal

An atom has an atomic number of 15 and a mass number that rounds to 31. How many protons are there in the atom?

• 15

• 31

• 16

• 47

The atomic number is always the number of ____.

• Neutrons

• Electrons

• Ions

• Protons