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S1 Finals > Chemistry > Flashcards

Chemistry Flashcards

1
Q

What is a proposed explanation for an observation or scientific problem, which can be tested by further investigation

A

Hypothesis

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2
Q

A measure of the quantity of matter in an object

A

Mass

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3
Q

A characteristic or quality of substance

A

Property

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4
Q

Anything that has mass and volume

A

Matter

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5
Q

The amount of space a sample of matter occupies.

A

Volume

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6
Q

Positively charged atom

A

Proton

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7
Q

A small molecule or particle of a chemical element

A

Atom

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8
Q

The total number of protons and neutrons in a nucleus

A

Mass Number

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9
Q

A unit of mass used to measure atoms

A

Atomic Mass Units

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10
Q

Negatively charged atom

A

Electron

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11
Q

A unit of mass used to measure atoms

A

Atomic mass units

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12
Q

Two of the same atoms with a different number of neutrons in the nucleus

A

Isotopes

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13
Q

Small, dense region consisting of protons and neutrons at the center of an atom

A

Nucleus

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14
Q

Cation

A

A positively charged ion

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15
Q

Anion

A

A negatively charged ion

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16
Q

Located in the center of the periodic table

A

Transition metals

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17
Q

Section D on the periodic table

A

Transitional Metals

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18
Q

Dull, brittle elements that are not good conductors of energy or heat

A

Non-Metals

19
Q

Group 1

A

Alkali metals

20
Q

Group 2

A

Alkaline earth metals

21
Q

Group 17

A

Halogens

22
Q

Group 18

A

Noble gases

23
Q

Electrons in the outer-most shell that are available for bonding

A

Valence Electrons

24
Q

A bond which electrons are not shared evenly

A

Polar covalent

25
Q

A bond in which electrons are shared evenly

A

Non-Polar Covalent

26
Q

This states that atoms will give, take, or share electrons in order to get eight electrons in their outer shell

A

Octet rule

27
Q

The distance from the nucleus to the outer-most electron; gets larger as you go up, and gets smaller as you go left to right

A

Atomic radius

28
Q

The amount of energy needed to remove an electron from the atom

A

Ionization energy

29
Q

how many electrons an atom wants

A

Electron Affinity

30
Q

Electronegativity

A

How easily an atom can attract electrons

31
Q

Positively or negatively charged atoms in which electrons have been gained or lost, protons never change.

A

Ion

32
Q

Bonds made between metals; there are always free electrons floating around

A

Metallic bond

32
Q

Bonds made between metals; there are always free electrons floating around

A

Metallic bond

32
Q

Bonds made between metals; there are always free electrons floating around

A

Metallic bond

33
Q

Can’t be physically broken down, definite composition

A

Pure substance

34
Q

Can be physically broken down, no definite composition

A

Mixture

35
Q

two or more chemically bonded elements

A

Compounds

36
Q

It has properties of both metals and non-metals

A

Metalloids

37
Q

Hard, dense elements with a high luster (shiny) can be bent (malleable), pulled and they are good conductors of heat.

A

Metals

38
Q

Malleable

A

Can be bent

39
Q

High luster

A

Shiny

40
Q

Ductile

A

Can be pulled

41
Q

To Move the decimal point to the left until the first number is at least one but less than ten. The number of places that you have to move it becomes the exponent

A

Scientific Notation

42
Q

How to do scientific notation?

A

Move the decimal point to the left until the first number is at least one but less than ten. The number of places that you have to move it becomes the exponent

S1 Finals (3 decks)

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