Atom Practice Quiz

The smallest particles of matter are called

• neutrons

• atoms

• electrons

• protons

What does the atomic number represent?

• how many atoms are in a group.

• how much an atom weighs.

• the number of protons in the nucleus of the atom.

Which particles are contained in the nucleus of an atom?

• neutrons and electrons

• protons and neutons

• protons, neutron, and electrons

which subatomic particles have no charge (they are neutral)?

• protons

• neutrons

• electrons

What is a subatomic particle with a positive charge?

• Proton

• Neutron

• Electron

What are kinds of subatomic particles?

• Protons neutrons, and electrons

• the nucleus

• the smallest particles of matter

What is the area surrounding the nucleus that contains negatively charged particles called?

• electron cloud

• center

• outer region

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?

• 22
• 11
• 34
• 23

Tags

NGSS.MS-PS1-1

What is the atomic mass of the atom pictured? 

• 11
• 12
• 22
• 23

Tags

NGSS.MS-PS1-1