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

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

In the modern periodic table elements are arranged by:

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

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.HS-PS1-1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons