Parts of an atom

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

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 

Tags

NGSS.MS-PS1-1

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

• negatrons 
• electrons 
• neutrons 
• protons 

How many protons does this atom have?

• 2.5
• 6
• 5
• 10.811

Tags

NGSS.MS-PS1-1

What part of the atom is the arrow pointing to?

• nucleus
• proton
• electron shell
• electron

Tags

NGSS.MS-PS1-1

If the number of protons equal the number of _____, the atom will have no charge

• protons
• neutrons
• electrons
• nucleus

Tags

NGSS.MS-PS1-1

The subatomic particle found outside the nucleus is the

• atom
• electron
• proton
• neutron

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus