Electronic Configurations

How many electrons does a neutral atom of Si contain? (click to see image)

• 14

• 28

• 2

• 4

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NGSS.HS-PS1-1

How many electrons can the first energy level of an atom hold?

• 1

• 2

• 8

• 0

What is the electronic configuration of Lithium?

• 2.8.8

• 2.2.2

• 2.8.5

• 2.1

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NGSS.HS-PS1-1

How many electrons per shell does calcium have?

• 2,8,8,2

• 2,8,10

• 2,8,2,8

• 2,1,8,2

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NGSS.HS-PS1-1

What causes an atom to be neutral?

• The atom contains 3 types of subatomic particles

• The atom contains neutrons

• The atom has an equal number of protons and electrons

• The atom has a pH of 7

Atoms of which element have the shell electronic configuration 2,8,2 ?

• fluorine

• hydrogen

• magnesium

• sulfur

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NGSS.HS-PS1-1

What is the subshell electronic configuration for the atom shown in the image?

• 1s²2s²2p⁶

• 1s²2s²2p⁵

• 1s²2s²2p³

• 2s²2p³

Tags

NGSS.HS-PS1-1

What is the noble gas shorthand electron configuration for a sulfur atom?

• [Ar] 3p⁴

• [He] 3s²3p⁴

• [Ne] 3s²3p⁴

• [Na] 3s²3p⁴

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which neutral atom matches this electron configuration?

1s²2s²2p⁶3s²

• Neon

• Magnesium

• Aluminum

• Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element is depicted in the orbital diagram shown?

• Fluorine

• Neon

• Chlorine

• Argon

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NGSS.HS-PS1-1