Write down the Names, Symbols, Atomic Number, Electronic Configuration (on the basis

of K,L,M,N) and the Valency of a

Question

Write down the Names, Symbols, Atomic Number, Electronic Configuration (on the basis

of K,L,M,N) and the Valency of all the elements from Atomic Number 1 to 20.​

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Josie 1 month 2021-08-16T04:58:40+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-16T04:59:50+00:00

    Answer:

    Hydrogen (H) Atomic Number: 1 Valency = 1

    Helium (He) Atomic Number: 2 Valency = 0

    Lithium(Le) Atomic Number: 3 Valency = 1

    Beryllium(Be) Atomic Number: 4 Valency = 2

    Boron(B) Atomic Number: 5 Valency = 3

    Carbon(C) Atomic Number: 6 Valency = 4

    Nitrogen(N) Atomic Number: 7 Valency = 3

    Oxygen(O) Atomic Number: 8 Valency = 2

    Fluorine(F) Atomic Number: 9 Valency = 1

    Neon (Ne) Atomic Number: 10 Valency = 0

    Sodium(Na) Atomic Number: 11 Valency = 1

    Magnesium(Mg) Atomic Number: 12 Valency = 2

    Aluminium(Al) Atomic Number: 13 Valency = 3

    Silicon(Si) Atomic Number: 14 Valency = 4

    Phosphorus(P) Atomic Number: 15 Valency = 3

    Sulphur(S) Atomic Number: 16 Valency = 2

    Chlorine(Cl) Atomic Number: 17 Valency = 1

    Argon(Ar) Atomic Number: 18 Valency = 0

    0
    2021-08-16T04:59:55+00:00

    Answer:

    aur bahi follow kar le same same haha

    what is endowed

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9:3-3+1x3-4:2 = ? ( )