All matter is made of _______.

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

The positive particles of an atom are ________.

• electrons 
• nucleus
• 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 
• proton

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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 

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NGSS.MS-PS1-1

In the modern Periodic Table, elements are arranged by:

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

The part of the atom that carries a negative charge is ________.

• the proton
• the neutron 
• the electron
• the nucelus

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

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Tags

NGSS.MS-PS1-1

These particles orbit around the nucleus of an atom.  What are they called?

• electrons
• protons
• neutrons
• photons

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NGSS.MS-PS1-1

When two atoms join together they make a ________.

• Element
• Molecule
• Cell
• Photosynthesis

Tags

NGSS.MS-PS1-1