Chemistry Test 4/24

Front 1

What is the most important thing to describe concerning the behavior of the electron?

Back 1

Energy

Front 2

Each quantum number has a...

Back 2

Restriction

Front 3

If two symbols are in the same orbital, they have....

Back 3

Two opposite spins

Front 4

These type of orbitals are orbitals with the same energy

Back 4

Degenerate

Front 5

The water skull electrons involved in chemical bonding

Back 5

Valence Electrons

Front 6

When elements have the same number of electrons they are...

Back 6

Iso-electronic

Front 7

Occurs when one made of a substance forms its settlements when they are in their most standard state

Back 7

Enthalpy Chhange

Front 8

The notation used to introduce which orbital e- is occupying

Back 8

l-value

Front 9

Defines the shape of the electron cloud, which are called orbitals

Back 9

Electron cloud

Front 10

Are spherical in shape so they have only one orientation

Back 10

S-orbitals

Front 11

S-orbitals are spherical in shape so they have

Back 11

one orientation

Front 12

P-Orbitals have a dumbell shape and have...

Back 12

3 orientations

Front 13

have a dumbell shape and have 3 orientations

Back 13

P-Orbitals

Front 14

Can be used to describe the behavior of the

of the e- in a atom

Back 14

Quantum Number

Front 15

Atoms _________in size going across the periodic table

Back 15

Decrease

Front 16

Atoms____in seize going down the periodic table

Back 16

Increase

Front 17

The effective nuclear charge_______ going across the periodic table

Back 17

Increases

Front 18

The energy required to move an electron from an atom or ion

Back 18

Ionization Energy

Front 19

What does Hund's rule says what?

Back 19

That electrons enter the orbitals singly before they are paired up in a degenerate set of orbitals

Front 20

The size of the atoms depends on what?

Back 20

The number of electrons

Front 21

Cations are ________ than corresponding neutral atoms

Back 21

Smallere

Front 22

Atoms are _____larger than corresponding neutral atoms

Back 22

Larger

Front 23

What is the effective nuclear charge equation?

Back 23

Z-S

Front 24

Is the minimum energy required to remove an e- from a gaseous atom or ion

Back 24

Ionization Enegry

Front 25

All Ionization energies are endothermic or exothermic?

Back 25

Enothermic

Front 26

Ionization energies ________ going across a perdiod

Back 26

increase

Front 27

The first infinity for oxygen is ___(exo or indo) and the second is ____( exo or indo)

Back 27

exothermic and indothermic

Front 28

Hydrogen and Helium have what type of rule?

Back 28

Noble Gas Rule

Front 29

Depends on the size and the charges of that are involeved

Back 29

Lattice Ennegry

Front 30

Lewis Dot Structures=

Back 30

Molecules

Front 31

Lewis Dot Symbol=

Back 31

Atoms

Front 32

The water molecule has ________bonds and __________

Back 32

2 single covalent bonds and 2 lone paris

Front 33

Dividing the atoms up into 2 is called the

Back 33

Formal Charge

Front 34

What element is the most electromagnetic?

Back 34

Flourine

Front 35

When Nitrogen has ______bonds it will not have any lone pairs, so its formal charge will be what?

Back 35

4; +1

Front 36

When oxygen has _____ bonds and _______ lone pairs the formal charge is what?

Back 36

2;2; and 0

Front 37

Must have 8e- if you have less you are violating what rule?

Back 37

The Octet Rule

Front 38

Berilium is hypervalent or hypovalent?

Back 38

Hypovalent

Front 39

The sum of formal charge =

Back 39

the charge of the ion

Front 40

A type of bond that occurs in metals and is based upon the sea of electron metal

Back 40

Metallic Bonds

Front 41

The strength of the ionic bond depends upon 3 factors:

Back 41

The size of ions involved

The charge of the ions

Lattice Energy

Front 42

What elements will not violate the octet rule?

Back 42

Carbon, Nitrogen, Oxygen, and Flournine

Front 43

In copounds where ________ form _____ covalent bonds, they will never violate the octet rule

Back 43

CL, Br, and I

Single

Front 44

When oxyegen has __ bonds and __ lone pair its formal charge is +1

Back 44

3 and 1

Front 45

The best structure is usually the one with the...

Back 45

Lowest formal charge

Front 46

Elements in period 3 and higher may have an ______ and is said to be _________

Back 46

Expanded octet; hypervalent

Front 47

If an element is not satisfied with its electrons than it is said to be hypervalent or hypovalent?

Back 47

Hypovalent

Front 48

Nitrogen will always have a formal charge of _____ when it has 4 bonds

Back 48

+1

Front 49

Is defined as the energy required to break one mole of the bond into a gas phase

Back 49

Bond Energy

Front 50

As bond energy increase.... bond length does what?

Back 50

Decrease

Front 51

An estimate of the molecular geometry can be mad by using the what?

Back 51

VSEPR

Front 52

What does VSEPR stand for?

Back 52

Valence Shell Electron Pair Reputation Theory

Front 53

If the central atom does not have any lone-pairs, than the molecular geometry will be the _____ as the electronic geometry.

Back 53

Same

Front 54

j

Back 54

j