1St Nine Weeks Test Chemistry

Front 1

capacity to do work or to produce heat

Back 1

energy

Front 2

neither created nor destroyed

Back 2

conservation of matter

Front 3

does not alter identity

Back 3

physical change

Front 4

separate a solid fromC a liquid

Back 4

filtration

Front 5

CaCo3

Back 5

compound

Front 6

4.184 joules

Back 6

calorie

Front 7

2 or more elements chemically combined

Back 7

compound

Front 8

measure heat

Back 8

calorimeter

Front 9

solid, liquid, gas, plasma

Back 9

states of matter

Front 10

rock

Back 10

heterogeneous

Front 11

air

Back 11

homogeneous

Front 12

minus 273 degrees Celsius

Back 12

absolute zero

Front 13

Crushing a can is an example of a ______ change.

Back 13

physical

Front 14

the amount of mass in an object

Back 14

matter

Front 15

Water boils at ____ on the Celsius thermometer scale.

Back 15

100

Front 16

When ice melts to liquid water, it is an example of a ______ change.

Back 16

physical

Front 17

A spectrum that contains only certain colors or wavelengths is called a

Back 17

line

Front 18

3.0*10 to the 8 is the

Back 18

speed of light

Front 19

describes how fast the wave oscillates

Back 19

frequency

Front 20

Bohr labeled each energy level and each orbit by a

Back 20

quantum number

Front 21

lowest energy level

Back 21

ground state

Front 22

the distance the wave travels as it completes one full cycle of upward and downward motion

Back 22

wavelength

Front 23

height of the wave

Back 23

amplitude

Front 24

f sublevel can hold __ electrons

Back 24

14

Front 25

When an electron absorbs the appropriate amount of energy, it jumps to a level of higher energy called _______ state

Back 25

excited

Front 26

principle that states that the position and momentum of a moving object cannot simultaneously be measured and known exactly

Back 26

Heisenberg uncertainty

Front 27

Each principal energy level is divided into one of more

Back 27

sublevels

Front 28

The P orbital's are shaped like a

Back 28

dumb bell

Front 29

principle states that each orbital in an atom can hold at most 2 electrons and these electrons must have opposite spins

Back 29

Pauli Exclusion

Front 30

The d orbitals are shaped like

Back 30

a cloverleaf

Front 31

the number of protons and neutrons in an atom is called

Back 31

atomic number

Front 32

a negative charge will

Back 32

repel another negative charge

Front 33

the nucleus of an atom contains

Back 33

neutrons and protons

Front 34

An isotope of an element has different number of ______ in the nucleus

Back 34

neutrons

Front 35

smallest particle of an element

Back 35

atom

Front 36

an atom or group of atom that has a net electrical charge

Back 36

ion

Front 37

nuclear reactions change the composition of an atoms

Back 37

nucleus

Front 38

A hydrogen atom has a charge of

Back 38

0

Front 39

Who conclude that their theory of matter was based on 4 postulates?

Back 39

Dalton

Front 40

H

Back 40

Hydrogen

Front 41

He

Back 41

Helium

Front 42

Li

Back 42

Lithuim

Front 43

Be

Back 43

Beryllium

Front 44

B

Back 44

Boron

Front 45

C

Back 45

Carbon

Front 46

N

Back 46

Nitrogen

Front 47

O

Back 47

Oxygen

Front 48

F

Back 48

Fluorine

Front 49

Ne

Back 49

Neon

Front 50

Na

Back 50

Sodium

Front 51

Mg

Back 51

Magnesium

Front 52

Al

Back 52

Aluminum

Front 53

Si

Back 53

Silicon

Front 54

P

Back 54

Phosphorus

Front 55

S

Back 55

Sulfur

Front 56

Cl

Back 56

Chlorine

Front 57

Ar

Back 57

Argon

Front 58

K

Back 58

Potassium

Front 59

Ca

Back 59

Calcium

Front 60

Sc

Back 60

Scandium

Front 61

Ti

Back 61

Titanium

Front 62

V

Back 62

Vanadium

Front 63

Cr

Back 63

Chromium

Front 64

Mn

Back 64

Manganese

Front 65

Fe

Back 65

Iron

Front 66

Co

Back 66

Cobalt

Front 67

Ni

Back 67

Nickel

Front 68

Cu

Back 68

Copper

Front 69

Zn

Back 69

Zinc

Front 70

Ga

Back 70

Gallium

Front 71

Ge

Back 71

Germanium

Front 72

As

Back 72

Arsenic

Front 73

Se

Back 73

Selenium

Front 74

Br

Back 74

Bromine

Front 75

Kr

Back 75

Krypton

Front 76

Rb

Back 76

Rubidium

Front 77

Sr

Back 77

Strontium

Front 78

Y

Back 78

Yttrium

Front 79

Zr

Back 79

Zirconium

Front 80

Nb

Back 80

Niobium

Front 81

Mo

Back 81

Molybdenum

Front 82

Tc

Back 82

Technetium

Front 83

Ru

Back 83

Ruthenium

Front 84

Rh

Back 84

Rhodium

Front 85

Pd

Back 85

Palladium

Front 86

Ag

Back 86

Silver

Front 87

Cd

Back 87

Cadmium

Front 88

In

Back 88

Indium

Front 89

Sn

Back 89

Tin

Front 90

______ radiation consists of particles with 2+ charge

Back 90

alpha

Front 91

In a cathode ray tube, the cathode ray comes from the _____.

Back 91

cathode

Front 92

An electron's mass is essentially _ amu.

Back 92

0

Front 93

number of protons in an atom

Back 93

atomic number

Front 94

sum of its protons and neutrons

Back 94

mass number

Front 95

____ ray is not a part of the electromagnetic spectrum

Back 95

beta

Front 96

The characteristic of an electromagnetic wave that is associated with the energy of that radiation is its

Back 96

frequency

Front 97

______ has the greatest energy

Back 97

ultraviolet

Front 98

Pieces of energy are known as

Back 98

quanta

Front 99

The lowest sublevel in each principal energy level is represented by the symbol _

Back 99

s

Front 100

The longer the wavelength of light, the _____ its frequency

Back 100

lower

Front 101

The _______ the frequency of light, the higher the energy of its photons

Back 101

greater

Front 102

The electron configuration of an atom gives the distribution of electrons in the

Back 102

ground state

Front 103

The energy of an atom in an excited state is ____ than its energy in the ground state.

Back 103

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