Unit 2 Review Quiz (Partner Quiz - you get 2 attempts)

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

• neutron

• proton

• electron

• valence electron

How many protons does sulfur have?

• 32

• 16

• 48

• 12

The total number of protons and neutrons in an atom is called the...

• Atomic number
• Proton number
• Mass number
• Weight number

What element is represented in this Bohr Model? 

• Carbon
• Hydrogen
• Aluminum
• Lithium

Why are ions formed?

• To make our lives difficult
• Because atoms want 8 valence electrons
• Because atoms have the same number of protons and electrons
• Because atoms gained neutrons

Anions are...

• Positive
• Negative
• Neutral
• Crying

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom

How many total electrons does O^-2 (an oxide ion) have?

• 8
• 10
• 6
• 18

How many total electrons does Na⁺¹ (a sodium ion) have?

• 10
• 11
• 12
• 22