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Chemija > Kovalentinis Rysys > Flashcards

Kovalentinis Rysys Flashcards

1
Q

Kovalentinis rysys

A

Tai toks rysys, kai elektronai ne pereina is vieno atomo i kita, o sudaro viena arba keletas bendru elektronu poru m, risanciu besijungiancius atomus

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2
Q

Kovalentinis rysys gali buti:

A

Nepolinis
Polinis

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3
Q

Nepolinis rysys

A

Kai jungiasi vienos rusies nemetalai, bendroji elektronu pora yra vienodai traukiama abieju branduoliu ir yra simetriskai issidesciusi abieju branduoliu atzvilgiu

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4
Q

Sudaranti rysi bendra elektronu pora gali buti zymima

A

Raskine formule
Strukturine formule

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5
Q

Polinis rysys

A

Kovalentinis rysys sudarytas is elektronu poros, nesimetriskai issidesciusios abieju branduoliu lauke

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6
Q

Kaio veikia polinis rysys

A

Atomas, kurio elektrinis neigiamumas molekuleje didesnis, igyja neigiamaji dalini kruvi, o atomas kurio bendra elektronu pora nutolo igyja teigiamaji kruvi

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7
Q

Koks elektroneigiamumas turi buti poliniam rysi

A

Ne daugiau kaio 1,5 nes tai jau skaitosi kovalentinis

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8
Q

Dalinis kruvis

A

Sā€ S+

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Chemija (24 decks)

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