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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
heterogeneous mixture
a mixture in which substances are not evenly mixed Pg. 337
17
smallest piece of an element that still represents the element
atom
19
nonmetals
poor conductors of heat and electricity; most are gases at room temperature; solid forms tends to be brittle..pg. 268
20
solvent
the substance that exists in the greates quantity in a solution Pg. 343
21
condensation
change of state from a gas to a liquid
22
vapor
the gas state of a substance that is normally a solid or a liquid at room temperature
23
Atomic #
the number of protons in an atom of an element. Pg. 249
25
matter
anything that takes up space and has mass
26
nucleus
small area in the center of an atom in which most of an atom's mass and positive charge is concentrated
26
solutes
all other substances in a solution Pg. 343
27
homogeneous mixture
a mixture in which two or more substances are evenly mixed on the atomic level but not bonded together, "the same througout" Pg. 357
28
vaporization
change in state of a liquid into a gas
29
anything that takes up space and has mass
matter
31
atom
smallest piece of an element that still represents the element
32
matter that has the same composition and properties throughout Pg. 336
substance
33
total potential and kinetic energies of an object
thermal energy
34
two or more substances that are phyiscally blended but not chemically bonded together Pg. 336
mixture
35
solid
matter that has a definite volume and shape
36
a mixture in which two or more substances are evenly mixed on the atomic level but not bonded together, "the same througout" Pg. 357
homogeneous mixture
37
change of state of a gas to a solid without going through a liquid state
deposition
38
represents the average kinetic energy of the particles that make up an object or material
temperature
39
viscosity
measurement of a liquid's resistance to flow
39
change of state of a solid into a gas without going through the liquid state
sublimation
41
metals
often shiny; good conductors of thermal energy and electricity; ductile; malleable. pg. 268
42
average atomic mass
average mass of an element's isotopes; weighted according to the abundance of each isotope.
42
tells you what elements are in a compund and how many atoms of each element are present Pg. 280
chemical formula
43
deposition
change of state of a gas to a solid without going through a liquid state
44
atom that is no longer neutral because it has gained or lost electrons
ion
45
elements organized by their properties in a chart pg. 267-268
Periodic Table of Elements
46
matter that has no definite volume and no definite shape
gas
47
the gas state of a substance that is normally a solid or a liquid at room temperature
vapor
48
matter that has a definite volume but no definite shape
liquid
50
evaporation
vaporization that only occurs at the surface of a liquid
51
measurement of a liquid's resistance to flow
viscosity
51
matter made up of only one kind of atom
element
53
nuclear decay
process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation
54
electron
sub-atomic particle with one negative charge (1-)
55
describes elements that spontaneously emit radiation
radioactive
56
process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation
nuclear decay
58
sublimation
change of state of a solid into a gas without going through the liquid state
59
all elements in the same ROW of the Periodic Table of Elements have the same # of energy levels for electrons pg. 267
Period
60
a mixture in which substances are not evenly mixed Pg. 337
heterogeneous mixture
61
chemical formula
tells you what elements are in a compund and how many atoms of each element are present Pg. 280
62
the substance that exists in the greates quantity in a solution Pg. 343
solvent
63
change of state from a gas to a liquid
condensation
64
kinetic energy
object that has energy because it is in motion
65
Group
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
the Elements in Group 18 - chemically stable - do not bond easily with other atoms
noble gases
68
substance
matter that has the same composition and properties throughout Pg. 336
70
compounds
a substance whose smallest unit is made up of atoms of more than one element bonded together Pg. 276
71
surface tension
the uneven forces acting on a surface of a liquid
72
small area in the center of an atom in which most of an atom's mass and positive charge is concentrated
nucleus
74
element
matter made up of only one kind of atom
75
neutral particle in the nucleus of an atom (0)
neutron
76
proton
sub-atomic particle with one positive charge (1+)
77
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.
plasma
79
mixture
two or more substances that are phyiscally blended but not chemically bonded together Pg. 336
80
noble gases
the Elements in Group 18 - chemically stable - do not bond easily with other atoms
81
neutron
neutral particle in the nucleus of an atom (0)
82
metalloids
have properties in common with both metals and non-metals; often used as a semiconductor in electronic devices. pg. 268
84
vaporization that only occurs at the surface of a liquid
evaporation
85
sub-atomic particle with one negative charge (1-)
electron
86
Periodic Table of Elements
elements organized by their properties in a chart pg. 267-268
87
the number of protons in an atom of an element. Pg. 249
Atomic #
89
the uneven forces acting on a surface of a liquid
surface tension
90
Period
all elements in the same ROW of the Periodic Table of Elements have the same # of energy levels for electrons pg. 267
91
area around an atomic nucleus where an electron is most likely to be found
electron cloud
92
change in state of a liquid into a gas
vaporization
93
mass #
sum of the number of protons and neutrons in an atom
94
occurring without external force or cause
spontaneous

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