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Flashcards in Checkpoint 4 Deck (28)
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1

A bond in which 2 electrons are shared by 2 atoms

Covalent bonds

2

Pairs of electrons localized on one atom

Lone pair

3

Pairs of electrons shared between atoms

Bonding pairs

4

As the number of bonds increase, bond energy ____

Increases

5

As the number of bonds decrease, bond length _____

Decreases

6

Electrons are negatively charged and therefore repel each other. Distances between electron pairs are maximized

VSEPR Theory

7

How is the number of bonding pairs determined?

How many elements are bonded to the central atom

8

Multiple bonds make a ____ distance

Shorter

9

How are the number of lone pairs determined?

How many pairs of atoms are attached to the central atom

10

What is correlated to bond angle?

Total number of electron areas

11

How do you find the total electron area?

Bonding area + lone pairs

12

How do you determine electron pair geometry?

Total electron areas

13

How do you determine the molecular geometry?

Bonding areas

14

Electrons are not shared equally in a covalent bond

Polar covalent

15

Electrons are shared equally in a covalent bond

Nonpolar covalent

16

What is the trend of electronegativity on the periodic table?

Left to right increases, up and down decreases

17

When dipoles cancel out it is (polar or nonpolar)

Nonpolar

18

When dipoles do not cancel out it is (polar or nonpolar)

Polar

19

If the molecule is symmetric it is usually (polar or non polar)

Nonpolar

20

If the molecule is nonsymmetric, it is usually (polar or non polar)

Polar

21

Only contains carbon carbon single bonds

Alkanes

22

Contains at least one carbon carbon double bonds

Alkenes

23

Contains at least one carbon carbon triple bonds

Alkynes

24

Organic compounds that contain an -OH group

Alcohol

25

Organic compounds that contain a -COOH group

Carboxylic acid

26

Two hydrocarbons are bonded in an oxygen atom

Ether

27

Organic compounds that contain a -CONH2 group

Amides

28

Method of describing the delocalized electrons in some molecules where the bonding cannot be explicitly expressed by a single Lewis structure

Resonance