Science Q3 Flashcards

1
Q

defined as anything that occupies space and has mass

A

matter

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2
Q

who believed that any type of matter can be divided and subdivided further // “indivisible”

A

democritus

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3
Q

democritus’s master

A

leucippus

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4
Q

who modified an early theory that matter was made up of four elements

A

aristotle

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5
Q

smallest particle of an element

A

atom

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6
Q

consisting of two or more atoms

A

molecule

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7
Q

who proved that matter is made up of atoms

A

john dalton

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8
Q

unit size of an atom

A

angstrom

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9
Q

(POM) amount

A

mass

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10
Q

(POM) space

A

volume

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11
Q

(POM) volume

A

density

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12
Q

water’s density

A

1.0 g/cm^3

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13
Q

ability of materials to be drawn into fine wires

A

ductility

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14
Q

the appearance of being shiny

A

luster

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15
Q

ability of a material to be hammered into thin sheets

A

malleability

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16
Q

the resistance of a material to being scratched

A

hardness

17
Q

definite shape/volume, vclose together, fixed positions

A

solid

18
Q

no defshape but def volume, can move

A

liquid

19
Q

no def shape/volume, move freely

A

gas

20
Q

electrically charged, no defshape/volume

A

plasma

21
Q

laboratory made

A

bec

22
Q

(PC) solid to liquid

A

melting

23
Q

(PC) liquid to solid

A

freezing

24
Q

(PC) liquid to gas

A

evaporation

25
Q

(PC) gas to liquid

A

condensation

26
Q

(PC) solid to gas

A

sublimation

27
Q

(PC) gas to solid

A

deposition

28
Q

number of protons in the nucleus of an atom

A

atomic number

29
Q

sum of the number of protons in an atom

A

atomic mass

30
Q

periodic table: vertical

A

groups

31
Q

periodic table: horizontal

A

periods

32
Q

law of triad

A

johanne dobreiner 1817

33
Q

law of octaves

A

john newlands 1863

34
Q

father of periodic table

A

dmitri mendeleev 1869

35
Q

modern periodic table

A

henry moseley 1914