Periodic Table Quiz

Which of the following elements has the largest atomic radius?

• Fluorine (F)

• Sodium (Na)

• Oxygen (O)

• Argon (Ar)

Which of the following trends occurs as you move across a period in the periodic table?

• Atomic radius increases

• Ionization energy decreases

• Electronegativity decreases

• Atomic radius decreases

Which of the following is a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

Which of the following is a chemical property of a substance?

• Melting point

• Density

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NGSS.HS-PS1-1

How many significant figures are in the number 0.004506?

• 3

• 4

• 5

• 6

Which of the following electron configurations represents an element in Group 17 (Halogens)?

• 1s² 2s² 2p⁶ 3s² 3p⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p⁴

• 1s² 2s² 2p⁶ 3s² 3p³

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NGSS.HS-PS1-1

In the VSEPR model, what molecular shape would result from a molecule with two bonding pairs and no lone pairs on the central atom?

• Linear

• Bent

• Trigonal planar

• Tetrahedral

Which of the following compounds is an example of a molecular compound?

• NaCl

• H₂O

• MgO

• Al₂O₃

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NGSS.MS-PS1-1

Explain the trend in ionization energy as you move across a period in the periodic table.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration for the element with atomic number 15 (Phosphorus)?

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NGSS.HS-PS1-1

NGSS.HS-PS1-2