Chemistry

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

• negatrons 
• electrons 
• neutrons 
• protons 

Tags

NGSS.HS-PS1-8

If an atom has 3 electrons, how many protons does it have?

• 1
• 2
• 4
• 3

Tags

NGSS.MS-PS1-1

A(n) _____ is a unique substance that forms when two or more elements combine chemically.

• element
• compound
• mixture
• all of the above

Tags

NGSS.MS-PS1-5

Signs that a chemical change has occurred include

• a change in color
• the release of bubbles
• the production of an odor
• all of the above

Tags

NGSS.MS-PS1-2

All the elements on the left side of the periodic table are called..

• Metals

• Metalloid

• Nonmetals

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Where on the periodic table are the metalloids found?

• Right Side
• Along the Zig Zag Line
• Right Side

Burning a piece of paper 

• Chemical Change 
• Physical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Milk turning sour

• Chemical Change
• Physical Change 

Tags

NGSS.MS-PS1-2

Which is NOT a property of metals?

• shiny
• good conductor
• has full outer shell 
• tends to lose electrons