What is the title of Unit 4?

• Atoms & Energy

• Forces in Motion

• Nuclear Processes

• Energy

Which of the following particles are NOT found in an atom?

• proton

• neutron

• electron

• quark

What charge does a proton have?

• negative

• positive

• no charge (neutral)

• depends on where it is in the atom

An isotope is an element with the same number of protons but different amounts of ...

• electrons

• nuclei

• neutrons

• protons

Protons and neutrons have a much ____ mass than electrons.

• smaller

• larger

• same

• 1/1080

Most of the mass in an atom comes from its...

• element

• isotope

• nucleus

• electrons

The Periodic Table is organized by... (select ALL)

• groups

• periods

• atomic number

• shape

Elements in the same period of the Periodic Table have the ___ in common.

• same number of electron shells

• same number of electrons in their outer shell

• same number of protons

• same shape and size

When two small elements combine to create a different element, scientists call this...

• nuclear fusion

• nuclear fission

• fishing

• Jimmy Neutron

Which nuclear process releases more energy?

• Fusion

• Fission

• Same

• We don't have notes on this.