unit 1 ) CHEM BONDS

Question 1

what is the oclet rule

Answer 1

atoms will always share lose or gain electrons in such a way that the outer most level of the bohr diagram is filled out

Question 2

electronenegativity definition

Answer 2

the ability for the atom to be able to hold on the electron and the level of attractivness

Question 3

what elements have lower electronegativity

Answer 3

mettalic ones have lower non-metals have more (because metals give electrons annd non metals share electrons)

Question 4

how do you write lewis dot diagrams

Answer 4

1. determine valance electrons
2. determine how many bonds are shared between elements write ——- for single
3. or == for double element to show that they bond toghether

Question 5

what does stereochemistry mean

Answer 5

the spatial arrangement or 3D distribution of molecules.

Question 6

vsepr theory meaning

Answer 6

a set of rules to determine what the 2d lewis structure of a molecule bond looks like in 3d

Question 7

how many things are in linear molecules

Answer 7

2 things are around the central atom they’re are in a line with 2 things around central its linear

-180 degrees

Question 8

how many things are in trignal plainer

Answer 8

when 3 things around central atom theres 3 things around central atom its trignal plainer

-120 degrees

Question 9

does it matter how bonds are in the vsepr molecules

Answer 9

• no it doesnt matter how many bonds wether double triple or single itll still be the same model

Question 10

bent molecule definintion

Answer 10

-based on triginal plainer
-instead of having a whole atom above central atom its a unshared electron and its

-aproxemetly 116 degrees

Question 11

tetrahedral shape molecule definition

Answer 11

when thers 4 things that are around the central atom regardless of bonds

-all 109.5 degrees

Question 12

trigonal pyramidal shape molecule definition

Answer 12

has 3 bonds but one of them are replaced with an unpaired electron

-around 107 degrees

Question 13

what does the water molecule look like

Answer 13

water has 3 bonds but one of them are replaced with an unpaired electron around

-107 degrees

Question 14

ways to achive bent shape

Answer 14

1. having 3 things around central atom one of them being a unshared electron
2. having 4 things around central atom two of them being unshared electron (like water h2o)

Question 15

how to detremine molecule shape

Answer 15

1. ask how many things are placed around the central atom
2. what structure the molecule is based on
3. which atoms are replaced with unshared electrons (if any)
4. list structure and bond angles

Question 16

What does polar mean

Answer 16

Polar is when there’s a large difference in electronegativity (usually 0.8) and have positive and negative ends

Question 17

What does nonpolar stand for

Answer 17

It stands for the atoms sharing the same electronegativity and having two negative ends

Question 18

Do Polar have nonequal sharing or equal sharing

Answer 18

They have nonequal because of the large electronegativity difference pulls the atoms to try to get full octet

Question 19

Do Nonpolar bonds have equal or nonequal sharing

Answer 19

They have equal sharing because they don’t have as large of a electronegativiy to pull the other atoms

Question 20

NxAy) containing nitrogen and one other atoms (polar or non-polar )

Answer 20

polar

Question 21

what do all forces polar or non polar have

Answer 21

london foces

Question 22

AB) 2 diatomic with different atoms

Answer 22

polar

Question 23

OxAy) containing oxygen and other atoms

Answer 23

polar

Question 24

SxAy) containing sulfur and one other atom

Answer 24

polar

Question 25

CxAyBx) containing carbon and 2 other atoms

Answer 25

polar

Question 26

Ax) only 1 of any and all elements

Answer 26

non-polar

Question 27

contianing carbon and only 1 other type of atom

Answer 27

non-polar

Question 28

formula i made to help remember polar cheat sheet

Answer 28

son/1 + c+2 + di+1

Question 29

what makes somthing a hydrogen bond

Answer 29

hydrogen is directly connected (meaning right beside) either f- flouride o-oxygen n- nitgrogen FON

Question 30

whats traits of an ionic

Answer 30

hard
brittle
med to high melting point
liquid conducts

Question 31

whats traits of metallic

Answer 31

soft to very hard
solid and liquid conducts
ductile (not brittle can be bent)

Question 32

traits of molecular

Answer 32

london or diple diple forces, hydrogen forces
soft
low melting points
always nonconducting

Question 33

covalent network

Answer 33

always covalent bonds
very hard
very very high melting points
nonconducting