Chem 104 Exam #2

Front 1

Ionic bonds:

Back 1

transfer of electrons between atoms
-involve full chargs

Front 2

Covalent bonds:

Back 2

involve sharing of electrons
polar- contain partial charges
nonpolar- do not have partial charges, equal charges

Front 3

Orbital designation for shell #1:

Back 3

S

Front 4

Orbital designation for shell #2

Back 4

S,P

Front 5

Orbital designation for shell #3:

Back 5

S,P, D

Front 6

Orbital designation for shell #4:

Back 6

S,P,D,F

Front 7

number of orbitals in shell S:

Back 7

1

Front 8

number of orbitals in shell S, P

Back 8

1,3

Front 9

number of orbitals in shell S,P,D

Back 9

1,3,5

Front 10

nhumber of orbitals in shell S,P,D,F

Back 10

1,3,5,7

Front 11

maximum # of electrons in S shell

Back 11

2

Front 12

maximum # of electrons in S,P shell

Back 12

8

Front 13

maximum # of electrons in S,P,D shell:

Back 13

2,6,10

Front 14

maximum # of S,P,D,F

Back 14

2,6,10,14

Front 15

Hunds rule:

Back 15

When there are orbitals of equal energy in a subsell to fill, the electrons first go into different orbitals with parallel spinds one at time

Front 16

Valence shell:

Back 16

outsermost, highest energy shell of an atoms (s&P orbitals only)

Front 17

Valance electrons:

Back 17

Electron in the outermost shell of an atom. These electrons are looseley held, they are most important in determining an element's properties

Front 18

Max number of valance electrions in a valance shell:

Back 18

8

Front 19

true or false: Chemical compounds can be broken down by chemical change into simpler substances

Back 19

true

Front 20

Reactants:(substrates)

Back 20

one or more starting materials, between reactants

Front 21

Products:

Back 21

one or more substances formed as result of a chemical reaction. Between products.

Front 22

Octet rule:

Back 22

elemewnts involved in chemical bonds are most stable if tehy can obtain a noble gas arrangement of electrons

Front 23

by gaining or losing one or more electrons, an atom can be converted into a charged particle called:

Back 23

ion

Front 24

When elements become ions they can be involved in:

Back 24

ionic bonding

Front 25

Cation:

Back 25

the loss of one or more electrons from a neutral atoms, gives it a positive charge

Front 26

Anion:

Back 26

Gain of one or more electerons by a neutral atom gives a negatively charged

Front 27

Electronegativity:

Back 27

Ability of atoms in a molecule to attract electrons to itself,
on periodic table the electronegativity increases as you go.

Front 28

Ionic compounds are made between:

Back 28

metal and nonmetal elements

Front 29

True or false:
Ionic compounds are usually crystalline solids

Back 29

true

Front 30

Ionic compounds have low or high melting points?

Back 30

high

Front 31

True or false:
ionic compounds dissolve in water if the attraction between water and the ions overcomes the attraction of the ions for one another.

Back 31

true

Front 32

Anions (-) are named by replacing the ending of the emelement with:

Back 32

"ide"

Front 33

ions that are composed of more than one atom are called:

Back 33

polyatomic ions

Front 34

acid:

Back 34

substants that provides H ions in water

Front 35

base:

Back 35

substance that provides OH ions in water