PEN, Bohr Models, and Valence Electrons

Which element has 3 more electrons than Calcium (Ca) ?

• Fluorine
• Vanadium
• Tungsten
• Argon

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NGSS.HS-PS1-1

This element has 20 neutrons and 19 negatively charged particles

• Kr
• K
• Rb
• Xe

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NGSS.HS-PS1-1

The smallest particle of any type of matter is known by which of the following terms?

• Element
• Compound
• Atom
• Chemical

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• Electrons and megatrons

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NGSS.HS-PS1-8

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

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

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NGSS.MS-PS1-1

Valence electrons are found in the ______ energy level.

• Farthest in
• Middle
• Outermost

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

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NGSS.HS-PS1-1

• 1
• 2
• 3
• 4

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

• 2
• 3
• 5

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

• 12
• 7
• 8
• 14

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NGSS.HS-PS1-1

NGSS.HS-PS1-2