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VSPER

VSPER

Assessment

Presentation

Science

9th - 12th Grade

Hard

NGSS
MS-ESS1-1, MS-ESS2-5, HS-PS1-1

+8

Standards-aligned

Created by

Stacy King

Used 10+ times

FREE Resource

10 Slides • 15 Questions

1

Review Questions

2

Multiple Choice

Question image
Partial charges like the ones shown here are called:
1
dipoles
2
deltas
3
ions
4
magnetic poles

3

Fill in the Blank

4

Multiple Select

Pick all of the COVALENT COMPOUNDS

1

CO2

2

Fe2O3

3

N2O3

4

NaCl

5

CCl4

5

Multiple Choice

What would be the name of NCl2

1

Mononitrogen Dichloride

2

Dinitrogen Monochloride

3

Nitrogen Dichloride

6

VSEPR Molecular Geometry

We Will:
1) Define VSPER Theory
2) Identify easy mistakes

I will Practice using and applying what I have learned

7

VSEPR

Valence Shell Electron Pair Repulsion

  • VSEPR predicts the shapes of molecules based on the idea of electron pairs repelling one another.

  • Electrons around the central atom repel and spread out.

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8

Multiple Choice

VSPER (valence Shell electron repulsion) Theory is used to help chemists Identify what?

1

electron shells

2

shape of molecules

3

number of covalent bonds

9

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10

Multiple Choice

Electrons repel one another because they are ...

1

like charges

2

opposite charges

3

they have an attitude problem

11

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12

VSEPR Theory Chart

A bonding site is any location where a bond occurs or branches from the central atom. We DON'T count a double bond as two bonding sites, but it is still just one.

Lone pairs are counted in pairs. They are also only included in the reading of the VSEPR chart if they are found attached to the central atom of the molecule. ​

13

Multiple Choice

Double and triple covalent bonds are counted as

1

1 VSPER

2

individual VSPER bonds

14

Multiple Choice

In VSPER we count the individual number of electrons?

1

NO

2

YES

15

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16

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17

Fill in the Blank

18

Fill in the Blank

19

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20

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21

Fill in the Blank

22

Fill in the Blank

23

Multiple Choice

Question image

What is the predicted molecular geometry of this molecule?

1

Linear

2

Bent

3

Trigonal Planar

4

Trigonal Pyramidal

24

Multiple Choice

Question image

What is the predicted molecular geometry of this molecule?

1

Linear

2

Bent

3

Trigonal Planar

4

Trigonal Pyramidal

25

Multiple Choice

Question image

Using your VSEPR chart what is the predicted molecular geometry of the following structure?

1

Trigonal Bipyramidal

2

Trigonal Planar

3

Trigonal Pyramidal

4

Tetrahedral

Review Questions

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