Electrons in Atoms

1. What atom matches this electron configuration?

1s² 2s² 2p⁶ 3s²3p⁴

• sodium

• sulfur

• silicon

• potassium

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NGSS.HS-PS1-1

What is the correct electron configuration for oxygen?

• 1s²2s²2p⁶3s²3p⁶4s²

• 1s²2s²2p⁶3s²3p⁴

• 1s¹2s²2p⁵

• 1s²2s²2p⁴

Tags

NGSS.HS-PS1-1

What is the maximum number of electrons that an orbital can have?

• 2

• 6

• 8

• 10

How many valence electrons are represented here?

• 2

• 4

• 8

• 12

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NGSS.HS-PS1-1

How many d orbitals are there?

• 2

• 5

• 7

• 10

How many electrons can the p sublevel hold?

• 2

• 3

• 6

• 8

Tags

NGSS.HS-PS1-1

What is this element?

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵

• magnesium

• iron

• manganese

• chromium

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NGSS.HS-PS1-1

What element is depicted in the orbital diagram above?

• scandium

• chlorine

• bismuth

• bromine

Tags

NGSS.HS-PS1-1

What atom matches this electron configuration?

[Xe] 6s² 4f¹⁴ 5d⁹

• tungsten

• gold

• silver

• copper

Tags

NGSS.HS-PS1-1

What is the noble gas configuration for a sulfur atom?

• [Ar] 3p⁴

• [Ne] 3p⁴

• [Ne] 3s²3p⁴

• [He] 3s²3p⁴

Tags

NGSS.HS-PS1-1