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13 July, 02:36

Why can a hydrogen atom form a covalent bond without fulfilling the octet rule?

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  1. 13 July, 03:01
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    Bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. The compound cyanogen (CN) 2 has covalent bonds shown in this diagram.
  2. 13 July, 03:04
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    The answer is: Hydrogen's valence shell can hold only up to two electrons.

    Hydrogen (symbol: H) is a chemical element with atomic number 1, which means it has one proton and one electron.

    Electron configuration of hydrogen atom: ₁H 1s¹.

    In s orbital maximum number of electrons is two.

    Hydrogen form bonds with electrons as closest noble gas helium (He).
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