Science - Matter Ch 1 L2

number of protons in the nucleus of an atom

• atomic mass
• atomic number
• mass number
• valence number

substance that cannot be created or broken down by ordinary chemical means

• molecule
• compound
• element
• CH₄

Matter is any physical substance; that which occupies space and has mass

• True
• False
• Taco Tuesday on Throwback Thursday
• #igotthewronganswer

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

• Negatrons 
• Electrons 
• Neutrons 
• Protons 

What is the atomic number?

• The number of protons in an element
• The number of neutrons in an element
• The number of protons and neutrons.
• The number of protons and electrons.

Tags

NGSS.MS-PS1-1

What is the atomic number of Fe? (click to see image)

• 26
• 55.845
• 56
• None of these

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NGSS.MS-PS1-1

How many neutrons does an Oxygen atom have?

• 8
• 16
• 24
• 7.999

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NGSS.MS-PS1-1

I am the smallest whole particle of matter. 

• atom
• compound
• molecule
• mixture

Tags

NGSS.MS-PS1-1

I am two or more atoms chemically bonded.

• atom
• compound
• molecule
• mixture

Tags

NGSS.MS-PS1-1

I am anything that has mass and takes up space!

• energy
• matter
• molecules
• atoms

Tags

NGSS.MS-PS1-5