Ask Question
19 May, 22:50

Determine the number of valence electrons in each of the neutral atoms. carbon: nitrogen: oxygen: chlorine: sulfur:

+3
Answers (2)
  1. 20 May, 01:01
    0
    Valence electrons -

    It refers to the number of electrons that are present at the very last shell of the atom, is referred to as the valence electrons.

    From the question,

    Carbon -

    Atomic number = 6

    electronic configuration is written as - 2, 4.

    Hence,

    Valence electrons = 4.

    Nitrogen -

    Atomic number = 7

    electronic configuration is written as - 2, 5.

    Hence,

    Valence electrons = 5.

    Oxygen -

    Atomic number = 8

    electronic configuration is written as - 2, 6.

    Hence,

    Valence electrons = 6.

    Chlorine -

    Atomic number = 17

    electronic configuration is written as - 2, 8, 7.

    Hence,

    Valence electrons = 7.

    Sulfur -

    Atomic number = 16

    electronic configuration is written as - 2, 8, 6

    Hence,

    Valence electrons = 6.
  2. 20 May, 02:33
    0
    Answer: C = 4 valence electrons

    N = 5 valence electrons

    O = 6 valence electrons

    Cl = 7 valence electrons

    S = 6 valence electrons

    Explanation: Refer to each electron configuration:

    C - 1s², 2s²,2p² valence e - add the exponents on the highest energy level which is period 2. So 2+2=4

    N - 1s²,2s²,2p³ add the exponent in the 2nd orbital: 2+3 = 5 valence electrons

    O - 1s²,2s²,2p⁴ add the exponents in the 2nd orbital: 2 + 4 = 6 valence electrons

    Cl - 1s²,2s²,2p5 add the exponents in the 2nd orbital: 2 + 5 = 7 valence electrons.

    S - 1s²,2s²,2p⁴ add the exponents in the 2nd orbital: 2 + 4 = 6 valence electrons.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Determine the number of valence electrons in each of the neutral atoms. carbon: nitrogen: oxygen: chlorine: sulfur: ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers