cheminis rysys Flashcards

1
Q

cheminis rysys yra skirstomas i

A

jonini ir kovalentini

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2
Q

joninis rysys

A

cheminis rysys kuris susiformuoja tarp skirtingu jonu

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3
Q

atomas atidaves elektronus virsta

A

teigiamu jonu katijonu

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4
Q

katijonai dazniausiai buna

A

metalai

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5
Q

atomai prisijunge elektronus virsta

A

neigiamais jonais anijonais

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6
Q

anijonai dažniausiai buna

A

ne metalai

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7
Q

joninis rysys (is taisykliu)

A

rysys susidarantis tarp atomu kurie gali atiduoti salia atsiradusiam atomui 1 ar kelis savo elektronus vadinamas joniniu

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8
Q

joninis rysys susidaro tarp

A

labai skirtingu cheminiu savybiu elemento atomu kurie turi dideli elektroneigiamumo skirtuma

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9
Q

joninis rysys yra tvirtas

A

todek juo sujungti atomai yra kristalines busenos medžiagos

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10
Q

joninese medziagose molekuliu

A

nera jose yra jonai

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11
Q

joniniame rysyje privaloma rasyti

A

valentinius elektronus

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12
Q

metalai

A

cheminiai elementai kurie lengvai atiduoda paskutinio sluoksnio elektronus (valentinius) virsdami teigiamais jonais

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13
Q

METALAI YRA

A

reduktoriai

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14
Q

nemetalai

A

cheminiai elementai kurie prisijunge elektronus i isorini sluoksni virsta neigiamais jonais

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15
Q

NEMETALAI YRA

A

oksidatoriai

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16
Q

elektroneigiamumas tai

A

elemento savybe prisitraukti elektronus

17
Q

pats elektroneigiamiausias elementas yra

A

fluoras (9)

18
Q

atomo sandara

A

branduolyje protonai ir neutronai o isoreje elektronai

19
Q

elektronu issidestymas

A

pirmam sluoksnyje 2, antrame 8, treciame 8

20
Q

natrio sulfida kaip surasyt?

A

Na +11 | 2 8 1
Na•-1e->Na+
S +16 | 2 8 6
••°°S••+2e->••°°..S••2-
na1+S2-
2 1
Na[••°°..S••]²-