Unit 1 Practice

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

• 1
• 2
• 3
• 4

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

True or False? Neutrons have a negative charge

• True
• False

Found in the nucleus of the atom

• electrons only
• protons only
• neutrons and protons
• neutrons and electrons

A negatively charged particle that moves around the nucleus is a(n)

• proton
• neutron
• electron
• quark

Particles in an atom's nucleus that are neutral and have no charge are 

• megatrons. 
• electrons.
• neutrons.
• protons. 

Protons determine an element's __________.

• Reactivity
• Nucleus
• Identity
• Color

What is the atomic number of this nucleus?

• 1
• 3
• 4
• 7

The three main subatomic particles are electrons, protons and ____________.

• photons
• neurons
• neutrons
• quarks