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Chemistry ICA > Atoms and the Periodic Table Study guide Unit 1 > Flashcards

Atoms and the Periodic Table Study guide Unit 1 Flashcards

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1
Q

Matter

A

Has mass and takes up space

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2
Q

Physical Property

A

Can be observed or measured without changing samples composition

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3
Q

Examples of Physical Property

A 
Color
odor
hardness
Density
Melting point
Boiling point
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4
Q

Chemical Property

A

Ability or inability of a substance to combine or change with or into one or more new substances

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5
Q

Chemical properties include

A

Flammability
Rust
Reactivity

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6
Q

Physical Change

A

Alters substance but not composition

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7
Q

Examples of Physical Change

A 
Cutting
Breaking
Crushing
Melting
Dissolving
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8
Q

Chemical Change

A

one or more substances that change into new substances

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9
Q

Signs of Chemical Change

A

Change in Color
Formation of gas
Formation of solid
Production of light or heat

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10
Q

Law of Conservation of Mass

A

Mass can’t be created nor destroyed

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11
Q

element

A

Pure substance that cannot be broken into simpler substances by chemical or physical means

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12
Q

Compound

A

two or more different elements can be broken down by chemical means with different properties
EX. sugar

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13
Q

Substance

A

Matter that has a uniform and definite composition

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14
Q

Examples of substances

A

Gold
Sugar
Sodium Chloride

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15
Q

Chemical or Physical?

Water to ice

A

Physical

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16
Q

Chemical or Physical?

Burning a piece of toast

A

Chemical

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17
Q

Chemical or Physical?

Baking Cupcakes

A

Chemical

18
Q

Chemical or Physical?

Crushing Ice

A

Physical

19
Q

Chemical or Physical?

Dissolving Water

A

Physical

20
Q

Chemical or Physical?

Melting ice

A

Physical

21
Q

Chemical or Physical?

Burning match

A

Chemical

22
Q

Proton

A

In the nucleus

Positive Charge

23
Q

Neutron

A

In the nucleus

No charge

24
Q

Electron

A

Outside the Nucleus

Negative Charge

25
Q

Atomic Number

A

Number of Protons

corner number in the symbol box

26
Q

Mass number

A

Number of protons and neutrons

27
Q

isotope

A

Same element different number of neutrons

28
Q

Electromagnetic Radiation spectrum

A

all forms of Electromagnetic radiation

only differences in types of radiation, frequencies, and wavelength

29
Q

Valence Electrons

A

Electrons on the outside that determines chemical properties of an element

30
Q

What did Democritus contribute

A

Unable to cut an atom

31
Q

What did Goldstein contribute

A

Discovered Protons

32
Q

What did Thomson contribute

A

Plum Pudding model

used to cathode ray tubes to discover the electron

33
Q

What did Rutherford contribute

A

Inventor of the nuclear model proved it with the gold foil experiment

34
Q

What did Bohr contribute

A

How electrons orbit

said that the closer to the nucleus the less energy was needed

35
Q

What did Chadwick contribute

A

Existence of neutrons

36
Q

What did Schrodinger contribute

A

the equation of energy of atoms

37
Q

What did Mendeleev contribute

A

Periodic table

38
Q

Ionizing

A

Radiation with enough energy to remove electrons from atoms producing ions
can damage DNA or cause Cancer

39
Q

Examples of ionizing

A

Alpha
Beta
UV
Gamma Rays

40
Q

Non-ionizing

A

Radiation that doesn’t remove electrons

41
Q

Examples of Non-ionizing

A

Visible light
infrared
radio waves
microwaves

42
Q

Daltons atomic theory

A

Chemical reactions occur when atoms are separated, joined, or rearranged

Chemistry ICA (4 decks)

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