Electronic Configuration

What  electron configuration matches  an iron ?

• 1s2,2s2, 2p6, 3s2,3p6, 4s2, 3d6

• 1s2,2s2,2p6,3s2,3p6,4s2,3d10

• 1s2,2s2,2p6,3s2

• 1s2, 2s2, 2p6 ,3s2, 3p4

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NGSS.HS-PS1-1

What electron configuration matches barium?

• 1s2,2s2, 2p6, 3s2,3p6, 4s2, 3d6

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2

• 2s2 2p6 3s2 3p6 4s2 3d10 4p5

• 1s2 2s2 2p6 3s1

Tags

NGSS.HS-PS1-1

4.What atom matches this electron configuration?1s2,2s2,2p6,3s2

• Neon      

• Magnesium

• Aluminum

• Potassium

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NGSS.HS-PS1-1

5.What atom matches this electron configuration?1s2,2s2,2p6,3s2,3p6,4s2,3d10

• Zinc

• Copper

• Nickle

• Germanium

Tags

NGSS.HS-PS1-1

6.What is the noble gas shorthand electron for Sulfur atom?

• [Ar] 3p4    

• [He] 3s23p4

• [Ne] 3s23p4  

• [Na] 3s23p4

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NGSS.HS-PS1-1

An orbital can at most hold how many electrons?

• 1 electron

• 4 electron

• 2 electron

• 3 electron

The electron configuration of an atom is 1s2, 2s2, 2p6.  

 The number of valence electrons in the atom is 

• 3

• 6

• 8

• 10

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NGSS.HS-PS1-1

16. What atom matches this electron configuration?[Kr] 5s2 4d9

• Fluorine

• Silver

• Sulfur

• Manganese

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

17.What atom matches this electron configuration?

[Ar] 4s2, 3d7

• Cobalt

• Zinc

• Iron

• Sodium

Answer explanation

In Co, the electron configuration would be [Ar]3d74s2. Because the cobalt is now Co 3+, 3 electrons are removed. The first 2 are removed from 4s2.

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NGSS.HS-PS1-1

20 . What atom matches this electron configuration?

1s2 ,2s2, 2p6, 3s2, 3p6, 4s2 ,3d10,4p6, 5s1

 

• Helium

• Hydrogen

• Lithium

• Rubidium

Tags

NGSS.HS-PS1-1