Chemistry Final Review

Which of the following would be the electron configuration for a highly reactive metal?

• 1s²

• 1s² 2s¹

• 1s² 2s² 2p²

• 1s² 2s² 2p⁶

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NGSS.HS-PS1-1

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Which of the following would be the electron configuration for an element with a complete valence shell?

• 1s¹

• 1s² 2s¹

• 1s² 2s² 2p²

• 1s² 2s² 2p⁶

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NGSS.HS-PS1-1

Which has the greater electronegativity:
Cl, Al, or Fe?

• Cl
• Al
• Fe

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What is the state when electrons move to a higher energy level upon absorption of energy?

• active

• inactive

• excited

• ground

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NGSS.HS-PS1-2

What form of energy is emitted when an excited electron returns to the ground state?

• Photon (light)

• Heat

• Kinetic

• Potential

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NGSS.HS-PS4-3

Elements on the LEFT side of the periodic table will most likely form:

• Cations: Positive ions

• Cations: Negative ions

• Anions: Positive ions

• Anions: Negative ions

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This orbital diagram represents:  

• C
• B
• N
• O

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Which of the following atoms would have the largest radius?

• chlorine

• silicon

• sodium

• argon

Put these in increasing order of ionic radii:
Ca, Ca+, Ca+2

• Ca < Ca+ < Ca+2

• Ca+2 < Ca+ < Ca

• Ca+ < Ca+2 < Ca

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NGSS.HS-PS1-1

What is a mole of something?

• the number of atoms in 12 grams of carbon-12

• approximately 6.02 x 10²³ items

• a convenient grouping of small particles that scientists use (like a dozen)

• all of these