The number of _______ determines the element

• Protons

• Electrons

• Neutrons

Light is given off from an atom when...

• electrons move to a higher shell

• electrons drop from a higher shell

Tags

NGSS.HS-PS4-3

How many electrons does this oxygen atom have?

• 6

• 8

• 10

• 4

Tags

NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Identify this atom: 

• Lithium
• Chlorine
• Phosphorus 
• Fluorine

Tags

NGSS.HS-PS1-1

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.HS-PS1-8

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

An atoms overall charge is 

• positive 
• depends on its mood 
• neutral 
• negative 

An atom's mass number equals the number of...

• protons plus the number of electrons
• protons plus the number of neutrons
• protons
• neutrons