what is the general electronic configuration of first group elements​

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1. Answer:

   Atomic Number Name of the Element Electronic Configuration

   1 Hydrogen (H) 1s1

   2 Helium (He) 1s2

   3 Lithium (Li) [He] 2s1

   4 Beryllium (Be) [He] 2s2

   5 Boron (B) [He] 2s2 2p1

   6 Carbon (C) [He] 2s2 2p2

   7 Nitrogen (N) [He] 2s2 2p3

   8 Oxygen (O) [He] 2s2 2p4

   9 Fluorine (F) [He] 2s2 2p5

   10 Neon (Ne) [He] 2s2 2p6

   11 Sodium (Na) [Ne] 3s1

   12 Magnesium (Mg) [Ne] 3s2

   13 Aluminium (Al) [Ne] 3s2 3p1

   14 Silicon (Si) [Ne] 3s2 3p2

   15 Phosphorus (P) [Ne] 3s2 3p3

   16 Sulphur (S) [Ne] 3s2 3p4

   17 Chlorine (Cl) [Ne] 3s2 3p5

   18 Argon (Ar) [Ne] 3s2 3p6

   19 Potassium (K) [Ar] 4s1

   20 Calcium (Ca) [Ar] 4s2

   21 Scandium (Sc) [Ar] 3d1 4s2

   22 Titanium (Ti) [Ar] 3d2 4s2

   23 Vanadium (V) [Ar] 3d3 4s2

   24 Chromium (Cr) [Ar] 3d5 4s1

   25 Manganese (Mn) [Ar] 3d5 4s2

   26 Iron (Fe) [Ar] 3d6 4s2

   27 Cobalt (Co) [Ar] 3d7 4s2

   28 Nickel (Ni) [Ar] 3d8 4s2

   29 Copper (Cu) [Ar] 3d10 4s1

   30 Zinc (Zn) [Ar] 3d10 4s2

   The electronic configuration of first 30 elements with atomic numbers listed above corresponds to the ground state of the specific elements. Any configuration that does not correspond to the lowest energy state is called an excited state.

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