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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Draw the Atomic Diagram of the Following Element Showing the Distribution of – Protons, Neutrons and the Electrons in the Various Shell of the Atom. Carbon – \\Ce{^12_6c}\ - Chemistry

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प्रश्न

Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.

Carbon – \[\ce{^12_6C}\]

[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]

संख्यात्मक
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उत्तर

Carbon – \[\ce{^12_6C}\]
Mass number A = p + n = 12
6 + n = 12
∴ n = 12 − 6 = 6
e = p = Atomic number = 6
                      C
6 = 2, 4
      (K, L)

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अध्याय 4: Atomic Structure - Exercises

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Composition of Atoms of the First Eighteen Elements with Electron Distribution in Various Shells
Name of Element Symbol Atomic Number Number of protons Number of Neutrons Number of Electrons Distribution of Electrons Valency
K L M N
Hydrogen H 1 1 - 1 1 - - - 1
Helium He 2 2 2 2 2 - - - 0
Lithium Li 3 3 4 3 2 1 - - 1
Beryllium Be 4 4 5 4 2 2 - - 2
Boron B 5 5 6 5 2 3 - - 3
Carbon C 6 6 6 6 2 4 - - 4
Nitrogen N 7 7 7 7 2 5 - - 3
Oxygen O 8 8 8 8 2 6 - - 2
Fluorine F 9 9 10 9 2 7 - - 1
Neon Ne 10 10 10 10 2 8 - - 0
Sodium Na 11 11 12 11 2 8 1 - 1
Magnesium Mg 12 12 12 12 2 8 2 - 2
Aluminium Al 13 13 14 13 2 8 3 - 3
Silicon Si 14 14 14 14 2 8 4 - 4
Phosphorus P 15 15 16 15 2 8 5 - 3.5
Sulphur S 16 16 16 16 2 8 6 - 2
Chlorine Cl 17 17 18 17 2 8 7 - 1
Argon Ar 18 18 22 18 2 8 8   0

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