Atomic Structure and Equations

Element is a

• pure substance
• compound
• mixture
• molecule

Is salt (NaCI) a compound or a element

• Compound
• element

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NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

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

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

• negatrons 
• electrons 
• neutrons 
• protons 

In the modern periodic table elements are arranged by:

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

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

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

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NGSS.MS-PS1-1

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

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