Atoms

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• negatrons 
• electrons 
• neutrons 
• protons 

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

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

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

The symbol for Carbon is

• 6
• 12.011
• C
• Ca

Tags

NGSS.MS-PS1-1

Beryllium has how many protons?

• 4
• 9.0122
• 2
• 13.0122

Tags

NGSS.MS-PS1-1

All matter is made of 

• energy 
• atoms 
• air
• chemistry

Tags

NGSS.MS-PS1-1

What is the smallest?

• worm
• molecule
• galaxy
• atom

Tags

NGSS.MS-PS1-1