The Foundations of Chemistry

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

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

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 

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

The smallest particle of any particular type of matter is known by which of the following terms?

• Compound
• Atom
• Chemical
• Element

Tags

NGSS.MS-PS1-1

What are the three states of matter?

• solid, volume, mass
• density, volume, mass
• solid, liquid, gas
• density, gas, volume

Tags

NGSS.MS-PS1-4

Something that takes up space and has mass.

• volume
• matter
• mass
• density

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NGSS.HS-PS1-7

What type of substance is always made up of a single type of atom?

• compound
• mixture
• molecule
• element

What is a homogeneous mixture?

• a mixture that is the same throughout.
• a mixture that is made up of one type of atom.
• a mixture that is made up of one type of compound
• a mixture that cannot be separated through physical changes

What does this picture represent?

• element
• compound
• mixture

Tags

NGSS.MS-LS1-1

NGSS.MS-LS2-3