atoms

What is matter composed of?

• Cells
• Atoms

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NGSS.MS-PS1-1

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

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NGSS.MS-PS1-1

The positive particles of an atom are 

• Electrons 
• Positrons 
• Neutrons 
• Protons 

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NGSS.MS-PS1-1

The central region of an atom where its neutrons and protons are is its _______.

• Nucleus 
• Electron cloud
• Core 
• Center 

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NGSS.MS-PS1-1

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• Cannot be determined 

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NGSS.MS-PS1-1

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

• Negatrons 
• Electrons 
• Neutrons 
• Protons 

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

The particles that are found in the nucleus of an atom are _____.

• Neutrons and electrons
• Electrons only
• Protons and neutrons
• Protons and electrons

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NGSS.MS-PS1-1

The atomic number of an elements is the total number of which particles in the nucleus?

• Neutrons
• Protons
• Electrons
• Protons and electrons

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

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NGSS.MS-PS1-1