Periodic Properties

The distance from the nucleus of an atom to the valence electrons is the __________

• Atomic Radius

• Ionization Energy

• Electronegativity

• Electrostatic

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As you move across a row (period) on the periodic table, the atomic radius ______________________

• Increases

• Decreases

• Stays the same

• Explodes

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Ionization energy is the energy needed to _________ an electron.

• Fission

• Explode

• Remove

• Add

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The reason the atomic radius increases down a group is due to

• Greater attraction by protons

• More energy levels (rings)

As you move across a row on the periodic table, ionization energy ______________________

• Decreases

• Increases

• Stays the same

Why does ionization energy decrease down group?

• More protons in nucleus

• More energy levels (rings)

Which element has the highest electronegativity?

• F

• Na

• K

• Li

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How many energy levels are in sodium?

• 1

• 2

• 3

• 4

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Which element has the highest ionization energy?

• Na

• Li

• Mg

• Ne

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Which group of elements has the lowest ionization energy?

• Group 1

• Group 2

• Group 3

• Group 4

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