Geirfa CH2 Flashcards

1
Q

Bond cyd drefnol

A

Bond cofalent ble mae dau electron yn dod o un atom

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2
Q

Bond ionig

A

Un atom yn rhoi un neu rhagor o electronnau i’r llall

Ffurfio gan atynniadau rhwng cationau a anionau

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3
Q

Electronegatifedd

A

Mesur o allu atom mewn bond cofalent i atynnu par bondio o electronnau

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4
Q

Deupol

A

Gwahaniad gwefr o fewn moleciwl

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5
Q

Par bondio

A

Dau electron a sbiniau dirgroes sy’n bondio dau atom mewn moleciwl drwy fond cofalent neu cyd drefnol

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6
Q

Par unig

A

Dau electron a sbiniau dirgroes sy’n perthyn i un atom yn unig ac nad ydynt yn bondio ag atom arall

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7
Q

Damcaniaeth Gwrthyriad Parau Electron Plisgyn Falema

A

Parau o electronnau yn gwrthyrru ei gilydd gan gymryd siap fel bod y gwrthyrriad rhyngddynt ar ei isaf

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8
Q

Bondio Cofalent

A

Pob atom yn rhoi un electron i’r pâr bondio

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9
Q

Electroffilau

A

Diffygiol o rhan electronnau

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10
Q

Niwcleoffilau

A

Ardal dwysedd uchel electronnau e.e par unig

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11
Q

Radical rhydd

A

Un electron di-gymar

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12
Q

Ymholltiad homolytig

A

Bond cofalent yn torri a pob atom yn cadw un electron o’r par yn y bond cofalent

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13
Q

Ymholltiad hetrolytig

A

Un atom yn cadw’r ddau electron o’r par bondio

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14
Q

Cyfansoddion organohalogen

A

Amrywiaeth eang o folecylau organig sydd fel rheol yn gymhleth ac sy’n cynnwys halogenau

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15
Q

Haen oson

A

Harn o amgylch y ddaear sy’n cynnwys O3

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16
Q

HFCau

A

Halogenoalcanau sy’n cynnwys fflworin fel yr unig halogenoalcan

17
Q

CFCau

A

Halogenoalcanau sy’n cynnwys clorin a fflworin

18
Q

Electronegatifedd

A

Mesur o allu atom mewn bond cofalent i atynnu par bondio o electronnau

19
Q

Hydoddiant dirlawn

A

Hydoddiant na all hydoddi mwy o hydoddyn o dan yr amodau ar y pryd