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is the only element in group 1 on the periodic table that forms covalent bonds.
A) hydrogen
B) lithium
C) potassium
D) sodium

Respuesta :

kenmyna

The element in group 1 on  the  periodic table that  form a  covalent bonds is hydrogen  (answer  A)

Explanation

  • A  covalent bond is a bond  which   formed  when their is sharing  of electron between atom.
  • Mostly covalent bond is formed between two non metals
  1. Hydrogen  is the only non metal in group 1 therefore it  is the only element in group 1 that form covalent bond.

Answer: A) hydrogen

Explanation: Covalent bonds are formed by sharing of electrons whereas ionic bonds are formed by transfer of electrons.

Hydrogen is an element with atomic number of 1 and thus contain 1 electron.

[tex]H:1:1s^1[/tex]

It can only share electrons to attain stable configuration as on losing the electron it wont exist.

Lithium is an element with atomic number of 3 and thus contain 3 electrons.

[tex]Li:3:1s^22s^1[/tex]

It can lose 1 electron to attain stable configuration.

Potassium is an element with atomic number of 19 and thus contain 19 electrons.

[tex]K:19:1s^22s^22p^63s^23p^64s^1[/tex]

It can lose 1 electron to attain stable configuration.

Sodium is an element with atomic number of 11 and thus contain 11 electrons.

[tex]Na:11:1s^22s^22p^63s^1[/tex]

It can lose 1 electron to attain stable configuration.

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