Atoms and Molecules

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• negatrons 
• electrons 
• neutrons 
• protons 

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

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

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

• nucleus 
• electron cloud
• core 
• center 

The smallest part of an element is known as the 

• Periodic Table
• Atom
• Group
• Period

Tags

NGSS.MS-PS1-1

An element is made up of only one kind of _____.

• isotope
• plastic
• atom
• metal

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NGSS.MS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

How many protons are in an atom of carbon?

• 12.01
• 8
• 6
• 14

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NGSS.MS-PS1-1

Which number here is the atomic number?

• 5

• 10.811

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NGSS.MS-PS1-1