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Science Vocabulary > Science Vocab_GP3_ States of Matter_Dec 3 > Flashcards

Science Vocab_GP3_ States of Matter_Dec 3 Flashcards

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1
Q

poor conductors of heat and electricity; most are gases at room temperature; solid forms tends to be brittle..pg. 268

A

nonmetals

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1
Q

often shiny; good conductors of thermal energy and electricity; ductile; malleable. pg. 268

A

metals

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2
Q

matter that has a definite volume and shape

A

solid

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2
Q

sum of the number of protons and neutrons in an atom

A

mass #

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2
Q

a substance whose smallest unit is made up of atoms of more than one element bonded together Pg. 276

A

compounds

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2
Q

another name for a liquid homogeneous mixture Pg. 337

A

solution

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4
Q

thermal energy

A

total potential and kinetic energies of an object

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5
Q

gas

A

matter that has no definite volume and no definite shape

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5
Q

electron cloud

A

area around an atomic nucleus where an electron is most likely to be found

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6
Q

sub-atomic particle with one positive charge (1+)

A

proton

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7
Q

average mass of an element’s isotopes; weighted according to the abundance of each isotope.

A

average atomic mass

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8
Q

radioactive

A

describes elements that spontaneously emit radiation

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9
Q

liquid

A

matter that has a definite volume but no definite shape

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9
Q

object that has energy because it is in motion

A

kinetic energy

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9
Q

all Elements in the same COLUMN of the Periodic Table of Element; s have similar properties related to their structure and tend to form similar types of chemical bonds

A

Group

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10
Q

plasma

A

high energy matter consisting of positively and negatively charged particles separate from the atom; most common state of matter in space. Found in lightning bolts, fluorescent lighting and stars such as the sun.

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11
Q

isotope

A

any of two or more atoms of the same element that have different #s of neutrons

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11
Q

have properties in common with both metals and non-metals; often used as a semiconductor in electronic devices. pg. 268

A

metalloids

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12
Q

temperature

A

represents the average kinetic energy of the particles that make up an object or material

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13
Q

any of two or more atoms of the same element that have different #s of neutrons

A

isotope

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14
Q

solution

A

another name for a liquid homogeneous mixture Pg. 337

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15
Q

ion

A

atom that is no longer neutral because it has gained or lost electrons

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16
Q

all other substances in a solution Pg. 343

A

solutes

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17
Q

spontaneous

A

occurring without external force or cause

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17
Q

heterogeneous mixture

A

a mixture in which substances are not evenly mixed Pg. 337

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17
Q

smallest piece of an element that still represents the element

A

atom

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19
Q

nonmetals

A

poor conductors of heat and electricity; most are gases at room temperature; solid forms tends to be brittle..pg. 268

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20
Q

solvent

A

the substance that exists in the greates quantity in a solution Pg. 343

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21
Q

condensation

A

change of state from a gas to a liquid

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22
Q

vapor

A

the gas state of a substance that is normally a solid or a liquid at room temperature

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23
Q

Atomic #

A

the number of protons in an atom of an element. Pg. 249

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25
Q

matter

A

anything that takes up space and has mass

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26
Q

nucleus

A

small area in the center of an atom in which most of an atom’s mass and positive charge is concentrated

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26
Q

solutes

A

all other substances in a solution Pg. 343

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27
Q

homogeneous mixture

A

a mixture in which two or more substances are evenly mixed on the atomic level but not bonded together, “the same througout” Pg. 357

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28
Q

vaporization

A

change in state of a liquid into a gas

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29
Q

anything that takes up space and has mass

A

matter

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31
Q

atom

A

smallest piece of an element that still represents the element

32
Q

matter that has the same composition and properties throughout Pg. 336

A

substance

33
Q

total potential and kinetic energies of an object

A

thermal energy

34
Q

two or more substances that are phyiscally blended but not chemically bonded together Pg. 336

A

mixture

35
Q

solid

A

matter that has a definite volume and shape

36
Q

a mixture in which two or more substances are evenly mixed on the atomic level but not bonded together, “the same througout” Pg. 357

A

homogeneous mixture

37
Q

change of state of a gas to a solid without going through a liquid state

A

deposition

38
Q

represents the average kinetic energy of the particles that make up an object or material

A

temperature

39
Q

viscosity

A

measurement of a liquid’s resistance to flow

39
Q

change of state of a solid into a gas without going through the liquid state

A

sublimation

41
Q

metals

A

often shiny; good conductors of thermal energy and electricity; ductile; malleable. pg. 268

42
Q

average atomic mass

A

average mass of an element’s isotopes; weighted according to the abundance of each isotope.

42
Q

tells you what elements are in a compund and how many atoms of each element are present Pg. 280

A

chemical formula

43
Q

deposition

A

change of state of a gas to a solid without going through a liquid state

44
Q

atom that is no longer neutral because it has gained or lost electrons

A

ion

45
Q

elements organized by their properties in a chart pg. 267-268

A

Periodic Table of Elements

46
Q

matter that has no definite volume and no definite shape

A

gas

47
Q

the gas state of a substance that is normally a solid or a liquid at room temperature

A

vapor

48
Q

matter that has a definite volume but no definite shape

A

liquid

50
Q

evaporation

A

vaporization that only occurs at the surface of a liquid

51
Q

measurement of a liquid’s resistance to flow

A

viscosity

51
Q

matter made up of only one kind of atom

A

element

53
Q

nuclear decay

A

process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation

54
Q

electron

A

sub-atomic particle with one negative charge (1-)

55
Q

describes elements that spontaneously emit radiation

A

radioactive

56
Q

process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation

A

nuclear decay

58
Q

sublimation

A

change of state of a solid into a gas without going through the liquid state

59
Q

all elements in the same ROW of the Periodic Table of Elements have the same # of energy levels for electrons pg. 267

A

Period

60
Q

a mixture in which substances are not evenly mixed Pg. 337

A

heterogeneous mixture

61
Q

chemical formula

A

tells you what elements are in a compund and how many atoms of each element are present Pg. 280

62
Q

the substance that exists in the greates quantity in a solution Pg. 343

A

solvent

63
Q

change of state from a gas to a liquid

A

condensation

64
Q

kinetic energy

A

object that has energy because it is in motion

65
Q

Group

A

all Elements in the same COLUMN of the Periodic Table of Element; s have similar properties related to their structure and tend to form similar types of chemical bonds

66
Q

the Elements in Group 18 - chemically stable - do not bond easily with other atoms

A

noble gases

68
Q

substance

A

matter that has the same composition and properties throughout Pg. 336

70
Q

compounds

A

a substance whose smallest unit is made up of atoms of more than one element bonded together Pg. 276

71
Q

surface tension

A

the uneven forces acting on a surface of a liquid

72
Q

small area in the center of an atom in which most of an atom’s mass and positive charge is concentrated

A

nucleus

74
Q

element

A

matter made up of only one kind of atom

75
Q

neutral particle in the nucleus of an atom (0)

A

neutron

76
Q

proton

A

sub-atomic particle with one positive charge (1+)

77
Q

high energy matter consisting of positively and negatively charged particles separate from the atom; most common state of matter in space. Found in lightning bolts, fluorescent lighting and stars such as the sun.

A

plasma

79
Q

mixture

A

two or more substances that are phyiscally blended but not chemically bonded together Pg. 336

80
Q

noble gases

A

the Elements in Group 18 - chemically stable - do not bond easily with other atoms

81
Q

neutron

A

neutral particle in the nucleus of an atom (0)

82
Q

metalloids

A

have properties in common with both metals and non-metals; often used as a semiconductor in electronic devices. pg. 268

84
Q

vaporization that only occurs at the surface of a liquid

A

evaporation

85
Q

sub-atomic particle with one negative charge (1-)

A

electron

86
Q

Periodic Table of Elements

A

elements organized by their properties in a chart pg. 267-268

87
Q

the number of protons in an atom of an element. Pg. 249

A

Atomic #

89
Q

the uneven forces acting on a surface of a liquid

A

surface tension

90
Q

Period

A

all elements in the same ROW of the Periodic Table of Elements have the same # of energy levels for electrons pg. 267

91
Q

area around an atomic nucleus where an electron is most likely to be found

A

electron cloud

92
Q

change in state of a liquid into a gas

A

vaporization

93
Q

mass #

A

sum of the number of protons and neutrons in an atom

94
Q

occurring without external force or cause

A

spontaneous

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