Atomic Structure and Isotopes Quiz Review

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

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

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

Tags

NGSS.HS-PS1-8

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1

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

• negatrons 
• electrons 
• neutrons 
• protons 

What is the mass of an electron?

• 1 amu

• negligible

Which two components of an atom contribute to the mass?

• Protons and neutrons

• Protons and electrons

• neutrons and electrons

True or False? Neutrons have a negative charge

• True
• False

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6