All matter is made of what

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

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.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 

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

• Proton
• Neutron
• Electron
• Quark

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.HS-PS1-1

What charge does an atom have when it GAINS electrons?

• Positive

• Negative

• Neutral

What two particles determine the mass number?

• Protons and electrons

• Electrons and neutrons

• Protons and neutrons

Tags

NGSS.HS-PS1-8

If the mass number of this chlorine atom is 36, how many neutrons does it have?

• 17

• 18

• 19

• can't be determined

Tags

NGSS.MS-PS1-1