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chem lec > group properties of elements > Flashcards

group properties of elements Flashcards

1
Q

horizontal rows

A

period

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2
Q

how many periods are there?

A

7

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3
Q

vertical rows

A

family/group

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4
Q

elements in a group have ________________

A

similar chemical properties

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5
Q

in period, elements are arranged in ______________

A

increasing atomic number

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6
Q

group VIII A

A

Inert gases

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7
Q

group IA

A

alkali metals

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8
Q

group IIA

A

alkaline earth metals

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9
Q

group VIA

A

chalcogens

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10
Q

group VIIA

A

halogend

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11
Q

group IB

A

coinage metals

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12
Q

group IIB

A

volatile metals

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13
Q

inner transition elements

A

lanthanides and actinides

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14
Q

starts with group IIIB ends with group IIB

A

transition elements

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15
Q

metallic elements are ___________ except alkali metals

A

protein precipitants

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16
Q

___________ are toxic

A

heavy metals

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17
Q

equally acidic and basic

A

amphoteric

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18
Q

aka diagonal elements

A

bridge elements

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19
Q

___________ are called representative elements

A

group a

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20
Q

__________ are called transition metal groups

A

group b

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21
Q

1st member of the family can be quite unlike the other members. It more closely resembles the second member of the adjacent group to the right.

A

bridge elements

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22
Q

measure of the energy required to remove an electron by overcoming the attractive forces of the nucleus.

A

ionization potential

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23
Q

metals have _______ IP, readily form ________

A

decreased, cations

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24
Q

non-metals have ________ IP

A

increased

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25
Q

Attraction of the nucleus for an electron

A

electronegativity

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26
Q

metals have ________ electronegativity, thus __________

A

decreased, electropositive

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27
Q

nonmetals have _____________ electronegativity, especially halogens

A

increased

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28
Q

nonmetals attract additional electrons to form _________

A

anions

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29
Q

known as noble gases

A

group viii a

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30
Q

what elements are under group VIII A

A

He, Ne, Ar, Kr, Rn

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31
Q

group VIII A occur in the __________ except _____

A

atmosphere, radon

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32
Q

Ar, Ne, Kr, and Xe are produced from liquid air by ____________

A

fractional distillation

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33
Q

Radon is recovered from the natural decay products of _________

A

radium

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34
Q

_____________ are monoatomic, colorless, and odorless

A

inert gases

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35
Q

inert gases except helium follow the _________

A

octet rule

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36
Q

2nd most lightest gas

A

helium

37
Q

It is chemically inert. It does not support combustion

A

helium

38
Q

Carrier/diluent for medically important gases

A

helium

39
Q

Component of artificial gas

A

helium

40
Q

Toxicity (inhalation): Donald duck-like sound

A

helium

41
Q

Aka: “New”

A

neon

42
Q

Used in advertising

A

neon

43
Q

Aka: “Lazy”

A

argon

44
Q

Most abundant and most widely distributed among all noble gases.

A

argon

45
Q

argon is a by-product of the fractionalization of liquid for the
production of ________ and __________

A

oxygen and nitrogen

46
Q

Substitute of nitrogen in providing inert atmosphere.

A

argon

47
Q

It is used to prevent the blackening of light bulbs

A

argon

48
Q

Aka: “Hidden”

A

krypton

49
Q

Least abundant among noble gases

A

krypton

50
Q

Have inhalational anesthetic activity

A

krypton

51
Q

The sparsity of these elements in nature imposes severe limitations on such use

A

krypton

52
Q

Aka: “Stranger”

A

xenon

53
Q

Investigational with inhalational anesthetic activity.

A

xenon

54
Q

Both ______________ has fairly high lipid solubility

A

xenon and krypton

55
Q

virtually equal with ethylene in terms of
anesthetic activity.

A

xenon

56
Q

Aka: “Niton”

A

radon

57
Q

Synthetic noble gas

A

radon

58
Q

Used in the treatment of cervical cancer

A

radon

59
Q

It emits alpha particles

A

radon

60
Q

Recovered from the natural decay products of Radium

A

radon

61
Q

Comprises the most reactive of all the metallic elements

A

Group IA

62
Q

Group IA elements have ________ activity with increasing atomic number

A

increased

63
Q

__________ give alkaline solutions

A

hydroxides

64
Q

Degree of solvation decreases with _____________ atomic number

A

increasing

65
Q

Have low melting points

A

group 1A elements

66
Q

Stable chemically; does not form complexes.

A

group 1A elements

67
Q

_______________ are ionic, usually colorless and soluble in water

A

group ia or alkali metals

68
Q

Only ________ and _________ are regularly hydrated in crystalline form

A

lithium and sodium

69
Q

aka: inflammable air

A

hydrogen

70
Q

lightest element

A

hydrogen

71
Q

isotopes of hydrogen

A

protium, deuterium, tritium

72
Q

most abundant isotope of hydrogen

A

protium

73
Q

heavy hydrogen (isotope of hydrogen)

A

deuterium

74
Q

radioactive (isotope of hydrogen)

A

tritium

75
Q

Aka: “Earth”

A

lithium

76
Q

Lightest of all metals

A

lithium

77
Q

Bridge element - resembles Mg

A

lithium

78
Q

used as depressant and diuretic

A

lithium

79
Q

heat exchanger in aircon

A

lithium

80
Q

Burning lithium forms ________

A

normal oxide

81
Q

________-has no physiological role and is toxic

A

lithium

82
Q

important compound of lithium used as depressant

A

lithium bromide

83
Q

Aka: “Natrium”

A

sodium

84
Q

Most abundant extracellular cation

A

sodium

85
Q

Used with caution in the treatment of cardiac and renal condition in which edema is a problem

A

sodium

86
Q

Cation of choice to optimize the pharmaceutical utility of organic medicaments

A

sodium

87
Q

Resembles K

A

ammonium

88
Q

solution of ammonia in water.

A

ammonium hydroxide

89
Q

Solutions of ammonium salts are ____

A

acidic

chem lec (3 decks)

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