Atoms

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

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

True or False? Neutrons have a negative charge

• True
• False

Tags

NGSS.HS-PS1-8

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

electrons have this type of charge?

• negative
• positive
• neutral

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

What does the nucleus consist of?

• Protons + Electrons
• Neutrons + Electrons
• Atoms
• Protons + Neutrons

Tags

NGSS.MS-PS1-1

The part of the atom that is moving around the nucleus is called?

• electron
• neutron
• proton

Atoms are mostly filled with?

• electrons
• empty space
• protons

Tags

NGSS.MS-PS1-1

If the number of protons changes, does the atom change its identity?

• YES!
• NO!