Test 10 - (Chapter 6) Flashcards

(39 cards)

1
Q

The halogen that is added to toothpaste and drinking water

A

fluorine

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2
Q

Most metals are…

A

solid

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3
Q

The densest of the everyday metals

A

lead

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4
Q

The element that is the basic building block of all the compounds

A

carbon

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5
Q

anything that takes up space and bass mass

A

matter

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6
Q

the two particles that make up the nucleus of an atom

A

protons and neutron

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7
Q

The measure of the pull of gravity on an object

A

weight

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8
Q

The metric unit that is used to measure an object’s mass

A

gram or kilograms

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9
Q

the amount of matter that makes up an object

A

mass

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10
Q

the tiny particles that swarm at tremendous speeds around the core of an atom

A

electrons

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11
Q

the amount of matter in one unit of volume

A

density

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12
Q

the tiny, extremely dense core at the center of an atom

A

nucleus

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13
Q

the tiny particles of which all matter is composed

A

atoms

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14
Q

The halogen that is useful as a bleach and a germ-killing agent

A

chlorine

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15
Q

The colorless, odorless gas that makes up 78% of the earth’s atmosphere

A

nitrogen

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16
Q

The halogen that is added to table salt to prevent a deficiency disease

17
Q

highly reactive elements that tend to form compounds with alkali and alkaline earth metals

18
Q

the organized arrangement of all known elements

A

periodic table of the elements

19
Q

the simplest kind of atom with one proton and one electron

20
Q

the study of what substances are made of and how one substance can be changed into another

21
Q

the most abundant element at the surface of the earth

22
Q

the number of protons an atom has

A

atomic number

23
Q

lacking an electrical charge

24
Q

formed by electrons zooming around the nucleus of an atom

A

electron cloud

25
The three main groups of elements
metals, nonmetals, semimetals
26
two or more atoms firmly bound together
molecule
27
what changes when an object changes from place to place
the weight changes
28
Iodine when heard does not melt it does this, or turns to gas
sublimes
29
If two objects have the same volume but different densities. the object made of the denser substance will weigh...
more
30
Protons have what kind of charge?
positive
31
a substance composed of one or more types of atoms bonded together
compound
32
a substance that is composed of only one type of atom
element
33
two electrons ________ each other (repel or attract)
repel
34
A neutral atom has an ______ number of protons and electrons
equal
35
a proces in which atoms of elements or compounds are rearranged to form new substances
chemical reaction
36
a compound made of molecules
molecular compound
37
the hardest of all known substances
diamond
38
the rapid reaction of any substance with oxygen
combustion
39
a compound made of charged atoms
ionic compound