Physics, asked by aadibhagat4595, 1 year ago

Valency and valence electrons of first 20 elements

Answers

Answered by LovelyBarshu
653
Heya mate !!!

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The Valency and valence electrons of the first 20 elements are -

1) Hydrogen (H)

Valency : +- 1 , Valence electrons : 1


2) Helium (He)

Valency : 0 , Valence electrons : 2


3) Lithium (Li)

Valency : +1 , Valence electrons : 1


4) Beryllium (Be)

Valency : +2 , Valence electrons : 2


5) Boron (B)

Valency : +3 , Valence electrons : 3


6) Carbon (C)

Valency : 4 , Valence electrons : 4


7) Nitrogen (N)

Valency: -3 , Valence electrons : 5


8) Oxygen (O)

Valency: -2 , Valence electrons : 6


9) Fluorine (F)

Valency: -1 , Valence electrons : 7


10) Neon (Ne)

Valency: 0 Valence electrons : 8


11) Sodium (Na)

Valency : +1 , Valence electrons : 1


12) Magnesium (Mg)

Valency : +2 , Valence electrons : 2


13) Aluminium (Al)

Valency : +3 , Valence electrons : 3


14) Silicon (Si)

Valency : 4 , Valence electrons : 4


15) Phosphorous (P)

Valency: -3 ( also 3 and 5 ),Valence electron: 5


16) Sulphur (S)

Valency: -2 , Valence electrons : 6


17) Chlorine (Cl)

Valency: -1 , Valence electrons : 7


18) Argon (Ar)

Valency: 0 , Valence electrons : 8


19) Potassium (K)

Valency : +1 , Valence electrons : 1


20) Calcium : +2 , Valence electrons : 2


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Hope helps !!
Answered by nirman95
14

VALENCY & VALENCE ELECTRONS IN FIRST 20 ELEMENTS:

  • Hydrogen : Valency : 1 & Valence Electrons : 1
  • Helium : Valency : 2 & Valence Electrons : 2
  • Lithium : Valency : 1 & Valence Electrons : 1
  • Berylium : Valency : 2 & Valence Electrons : 2
  • Boron : Valency : 3 & Valence Electrons : 3
  • Carbon : Valency : 4 & Valence Electrons : 4
  • Nitrogen : Valency : 3 & Valence Electrons : 5
  • Oxygen : Valency : 2 & Valence Electrons : 6
  • Fluorine : Valency : 1 & Valence Electrons : 7
  • Neon : Valency : 0 & Valence Electrons : 8
  • Sodium : Valency : 1 & Valence Electrons : 1
  • Magnesium : Valency : 2 & Valence Electrons : 2
  • Aluminium : Valency : 3 & Valence Electrons : 3
  • Silicon : Valency : 4 & Valence Electrons : 4
  • Phosphorous : Valency : 3 or 5 & Valence Electrons : 5
  • Sulphur : Valency : 2 & Valence Electrons : 6
  • Chlorine : Valency : 1 & Valence Electrons : 7
  • Argon : Valency : 0 & Valence Electrons : 8
  • Potassium : Valency : 1 & Valence Electrons : 1
  • Calcium : Valency : 2 & Valence Electrons : 2

\star Hope It Helps

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