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Chemistry > Atomic Basics > Flashcards

Atomic Basics Flashcards

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1
Q

Proton’s Location

A

Center

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2
Q

Neutron’s Location

A

Center

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3
Q

Electron’s Location

A

Outside, orbiting

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4
Q

Proton’s Charge

A

+1

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5
Q

Neutron’s Charge

A

0

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6
Q

Electron’s Charge

A

-1

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7
Q

Proton’s Mass

A

1

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8
Q

Neutron’s Mass

A

1

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9
Q

Electron’s Mass

A

0

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10
Q

Proton’s Function

A

Identity

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11
Q

Neutron’s Function

A

Stability

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12
Q

Electron’s Function

A

Interaction

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13
Q

Identity

A

What and element is

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14
Q

Stablitiy

A

Whether the element is radioactive or not

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15
Q

Interaction

A

Reactivity, how it reacts with different substances

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16
Q

Element

A

Atoms that have the same number of protons

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17
Q

Isotopes

A

Atoms of the same element with a different number of neutrons

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18
Q

Ions

A

Atoms of the same element with a different number of electrons

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19
Q

If the number of protons changes….

A

…the identity changes

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20
Q

Mass number

A

Protons + Neutrons (ex: carbon-12)

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21
Q

Atomic number

A

Protons (if this number changes, the identity changes)

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22
Q

Charge number

A

Protons minus Electrons

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23
Q

Positive charge

A

More protons

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24
Q

Negative charge

A

More electrons

25
Q

No charge

A

Neutral atoms, equal number of protons and electrons

26
Q

Cation

A

An atom that has lost electrons and is paw-sitive

27
Q

Anion

A

An atom that has gained electrons and is aNegative

28
Q

Unstable atom

A

Adding or taking away one too many neutrons

29
Q

Mass number

A

Whole number, protons + neutrons, top left

30
Q

Atomic mass

A

Weight! The weighted average of the mass of atoms from a naturally occurring sample

31
Q

Isotope

A

One of two or more types of atoms of an element (same protons, diff neutrons, diff mass numbers)

32
Q

Isotopic abundance

A

Different isotopes of an element exist in diff amounts in nature

33
Q

Atomic mass is determined using…

A

…weighted percentages of natural abundance

34
Q

19 1-
F
9
Mass number

A

19

35
Q

19 -1
F
9
Atomic number

A

9

36
Q

19 1-
F
9
Number of neutrons

A

10

37
Q

19 1-
F
9
Number of electrons

A

10

38
Q

19 1-
F
9
Ion or Isotope?

A

Anion

39
Q

19 1-
F
9
Phrase-

A

Fluorine-19

40
Q

19 1-
F
9
Charge

A

1-

41
Q

James Chadwick

A

Showed the existence of neutrons in the nucleus, proof of neutrons

42
Q

John Dalton

A

Showed how atoms combine, react, and the mass of them

43
Q

Democritus

A

Showed the concept of the ‘atom’

44
Q

JJ Thompson

A

Shows charges of atoms

45
Q

Schrodinger

A

Atoms are waves of matter, helped with location of electrons

46
Q

Ernest Rutherford

A

Shows the + charged atom and electrons around it

47
Q

Bohr

A

Electrons revolve around the nucleus, this only worked for hydrogen atoms :(

48
Q

What did John Dalton contribute to chemistry?

A

Pioneered atomic theory that atoms have weight

49
Q

Who discovered the proton?

A

Ernest Rutherford

50
Q

Who discovered the neutron?

A

James Chadwick

51
Q

Who discovered the nucleus?

A

Ernest Rutherford

52
Q

Who discovered electrons?

A

J.J. Thomson

53
Q

The quantum mechanical model of an atom…

A

…involves the probability of finding an electron in a region (proposed by Schrodinger)

54
Q

This person said all matter was composed of ‘atomos’, which could not be broken down more.

A

Democritus

55
Q

Electrons are found only in specific orbits around the nucleus, each having a fixed energy.

A

Bohr

56
Q

He proposed the plum pudding model

A

J.J. Thomson

57
Q

Who proposed that atoms combine in specific ratios

A

Dalton

58
Q

The most modern model of the atom says…

A

electrons are found in probability “clouds”

Chemistry (5 decks)

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