Electrons and Periodic Table Review

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶

• 1s²2s²2p⁴

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p²

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Valence electrons are located...

• in outer space

• on the outermost orbit of an atom

• inside the nucleus

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How many electrons can the first energy level hold?

• 2

• 6

• 10

• 1

There are 4 different types of orbitals s, p, d, f

• True

• False

The vertical (up and down) columns in the Periodic Table are called

• groups

• periods

• towers

• atomic columns

The horizontal (left and right) rows in the Periodic Table are called

• groups

• periods

• towers

• sentences

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NGSS.HS-PS1-1

Which group of the periodic table is composed of inert (not reactive) gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

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Which is an alkali metal?

• Magnesium

• Lithium

• Iron

• Argon

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I am a nonmetal

I am in period 2

I am in group 16/6A

• Ba

• Si

• Be

• O

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Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

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