REVIEW - Atomic structure, Elements, Compounds and mixtures

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Which subatomic particle has a negative (-) charge?

• Proton
• Electron
• Neutron

Where are the Electrons found in the structure of an atom?

• In the nucleus
• In spaces around the nucleus

How many electron shells/levels does this atom have?

• 1
• 2
• 3
• 4

How many protons does this atom have?

• 3
• 6
• 4
• 2

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

All ____________ are made up of two or more atoms bonded together.

• atoms
• molecules
• electrons
• elements

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is the atomic number of this atom?

• 1
• 3
• 4
• 7