ikatan kovalen
TRANSCRIPT
![Page 1: Ikatan kovalen](https://reader034.vdocuments.pub/reader034/viewer/2022052213/55a066981a28ab3f728b47f7/html5/thumbnails/1.jpg)
Ikatan Kovalen
![Page 2: Ikatan kovalen](https://reader034.vdocuments.pub/reader034/viewer/2022052213/55a066981a28ab3f728b47f7/html5/thumbnails/2.jpg)
Pembentukan Ikatan Kovalen
Ikatan Kovalen terbentuk karena adanya pemakaian pasangan elektron bersama – sama.Sehingga unsur tersebut akhirnya stabil (Oktet)
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Cl2
Misalnya Dalam
Pembentukan :
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ClCl
Perhatikan pembentukan ikatan Kovalen dalam Cl2
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ClClMasing – masing atom klorin memerlukan satu elektron agar stabil
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ClCl
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Cl Cl
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Cl Cl
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Cl Cl
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Cl Clstabil
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Cl ClStabil
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Cl ClMasing – masing atom klorinMenjadi stabil setelah Saling berbagi elektron
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Cl ClElektron yang ditengah adalah pasangan elektron yang dipakai bersama
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Cl ClInilah yang membentukIkatan kovalen yang Disebut Ikatan Tunggal
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Cl ClTerbentuklah molekul
Cl2
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O2
Bagaimana dengan molekul Oksigen ?
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Bagaimana atom Oksigen membentuk ikatan ?
OO
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OOMasing – masing atom Oksigen memliki sepasang elektron bebas
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OO
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OO
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OO
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OO
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OO
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OO
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OO
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OO
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OOKedua pasangan elektron saling
dibagi antar atom oksigen
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6 elektron valensi ditambah 2
pasangan elektron = stabil
OO
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OO6 elektron valensi
ditambah 2 pasangan elektron
= stabil
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Dua pasang ikatan
OOMembentuk ikatan rangkap dua
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OO=Ikatan rangkap dua
disimbolkan dengan dua garis
OO
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OO=Inilah molekul oksigen
O2
this is so
cool!
!
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Ikatan kovalen dapatMembentuk senyawa yang
Beraneka ragam
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Alkohol (Etanol)
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Aspirin
(21 atoms)
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Estrogen
dan
testosteron,
(49 atoms)
(44 atoms)
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hemoglobin,Yang kira-kira 11,000 atoms!