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P Block > Group 18: Noble gases > Flashcards

Group 18: Noble gases Flashcards

1
Q

I.E. (Group 18)

A

maximum in their respective periods

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2
Q

atomic radius (Group 18)

A

maximum in their respective periods

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3
Q

electron affinity (Group 18)

A

0

E.G.E. positive

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4
Q

M.P. AND B.P. (Group 18)

A

very low due to vandervall forces

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5
Q

B.P. of He (Group 18)

A

4.2K

least in the periodic table

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6
Q

maximum occurence in the atmosphere (Group 18)

A

Ar

0.93%

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7
Q

which element is used in balloon for meteorological observation (Group 18)

A

He

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8
Q

which element is used in gas cooled nuclear reactors (Group 18)

A

He

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9
Q

which element is used as cryogenic agent for experiment (Group 18)

A

He

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10
Q

which element produce powerful super conducting magnets (Group 18)

A

He

parts of MRI, NMR, Spectometre

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11
Q

which element is added in oxygen cylinder for divers (Group 18)

A

He

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12
Q

which element is used in florescent bulbs (Group 18)

A

Ne

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13
Q

bulbs of which element is used in botanical garden and green house (Group 18)

A

Ne

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14
Q

which gas is filled in electrical bulbs

A

Ar

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15
Q

which element provides inert atmosphere in metallurgical processes (Group 18)

A

Ar

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16
Q

elements that are used in bulbs (Group 18)

A

Ne
Ar
Xe
Kr

17
Q

XeF2 +NO = (Group 18)

A

Xe + NOF

18
Q

which element is used in catherate compounds (Group 18)

A

Ar
Kr
Xe
because of their large size

19
Q

structure of XeF2 (Group 18)

A

sp3d linear

20
Q

structure of XeF4 (Group 18)

A

sp3d2 square planer

21
Q

structure of XeF6 (Group 18)

A

sp3d3 distorted octahedral

22
Q

structure of XeO3 (Group 18)

A

sp3 pyramidal

23
Q

structure of XeO2F2 (Group 18)

A

see-saw

24
Q

structure of XeOF4 (Group 18)

A

square pyramidal

25
Q

alpha particle (Group 18)

A

He2+

nucleus of He

26
Q

first known compound of noble gas is (Group 18)

A

Xe[PtF6]

Neil Bartelet

27
Q

Noble gases mainly form elements with (Group 18)

A

higly electronegative element

F and O

28
Q

powerful flourinating agents are (Group 18)

A

XeF2

XeF4

29
Q

____ compound can donate as well as gain F- (Group 18)

A

XeF6

30
Q

XeF6 + H2O = (Group 18)

A

XeOF4 + 2HF

31
Q

XeOF4 + H2O = (Group 18)

A

XeO2F2 + 2HF

32
Q

XeO2F2 + H2O = (Group 18)

A

2HF + XeO3 (explosive solid)

33
Q

XeF4 + H2O = (Group 18)

A

Xe + XeO3 + HF

34
Q

XeF2 + H2O = (Group 18)

A

Xe + HF + O2

35
Q

xenon flourides are ______ in nature (Group 18)

A

crystalline solids

sublimes at 298K

P Block (4 decks)

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