Atomic Structure - Electron Configuration

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

Which subatomic particle has a negative (-) charge?

• Proton
• Electron
• Neutron

The subatomic particles in blue are...

• Neutrons
• Protons
• Electrons

How many electron shells/levels does this atom have?

• 1
• 2
• 3
• 4

How many protons does this atom have?

• 3
• 6
• 4
• 2

How many neutrons does a sodium atom have? (Use the image to help you)

• 23
• 11
• 12
• 34

Atoms of the same element must always have the same number of _________

• electrons
• neutrons
• isotopes
• protons

The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.

• 9
• 10
• 19
• 28

Referring to the table, what is the relative mass of a proton?

• 10
• 1
• 0.1
• 0.01

How many Electrons are in one atom of Lithium?

• 3
• 6
• 7
• 6.941