electronic configuration up to 45 elements
Answers
Explanation:
atomic number electronic configuration
1 ----- 1
2----2
3----2,1
4----2,2
5----2,3
6----2,4
7----2,5
8----2,6
9----2,7
10----2,8
11----2,8,1
12---2,8,2
13----2,8,3
14----2,8,4
15----2,8,5
16---2,8,6
17----2,8,7
18----2,8,8
19----2,8,8,1
20----2,8,8,2
21-----2,8,8,3
22----2,8,8,4
23----2,8,8,5
24----2,8,8,6
25----2,8,8,7
26----2,8,8,8
27----2,8,8,8,1
28----2,8,8,8,2
29----2,8,8,8,3
30----2,8,8,8,4
31----2,8,8,8,5
32----2,8,8,8,6
33----2,8,8,8,7
34----2,8,8,8,8
35----2,8,8,8,8,1
36----2,8,8,8,8,2
37----2,8,8,8,8,3
38----2,8,8,8,8,4
39----2,8,8,8,8,5
40----2,8,8,8,8,6
41----2,8,8,8,8,7
42----2,8,8,8,8,8,
43----2,8,8,8,8,8,1
44----2,8,8,8,8,8,2
45----2,8,8,8,8,8,3
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The Electronic configuration is the distribution of electrons in the atoms in atomic orbitals
Explanation:
- The Electronic configuration of an element is the notation of the manner in which the electrons are distributed in the atomic orbitals.
- On writing the electronic configuration a systematic approach is carried out.
- It follows a standardized notation in which the energy level and the type of orbitals are written first then the number of electrons present in the orbital is written in superscript.
- Following three rules are followed while writing the electronic configuration
Aufbaus Principle:-It states that in the ground state of an atom, an electron enters the orbital with the lowest energy first and subsequent electrons are fed in the order of increasing energies.
Pauli's exclusion principle:- It states that no two electrons in the same electrons have identical values of quantum numbers.
Hunds Rule of maximum multiplicity:-In case of filling of orbitals with electrons in the ground state, every orbital must singly be occupied before the pairing starts.
Electronic configuration is as follows
Element Symbol Electrons Electronic Configuration
Hydrogen (H) 1 1 s1
Helium (He) 2 1s2
Lithium (Li) 3 1s2 2s1
Beryllium (Be) 4 1s2 2s2
Boron (B) 5 1s2 2s2 2p1
Carbon (C) 6 1s2 2s2 2p2
Nitrogen (N) 7 1s2 2s2 2p3
Oxygen (O) 8 1s2 2s2 2p4
Fluorine (F) 9 1s2 2s2 2p5
Neon (Ne) 10 1s2 2s2 2p6
Sodium (Na) 11 1s2 2s2 2p6 3s1
Magnesium (Mg) 12 1s2 2s2 2p6 3s2
Aluminum (Al) 13 1s2 2s2 2p6 3s23p1
Silicon (Si) 14 1s2 2s2 2p6 3s23p2
Phosphorous (P) 15 1s2 2s2 2p6 3s23p3
Sulfur (S) 16 1s2 2s2 2p6 3s23p4
Chlorine (Cl) 17 1s2 2s2 2p6 3s23p5
Argon (Ar) 18 1s2 2s2 2p6 3s23p6
Potassium (K) 19 1s2 2s2 2p6 3s23p6 4s1
Calcium (Ca) 20 1s2 2s2 2p6 3s23p6 4s2
Scandium (Sc) 21 1s2 2s2 2p6 3s23p6 4s2 3d1
Titanium (Ti) 22 1s2 2s2 2p6 3s23p6 4s2 3d2
Vanadium (V) 23 1s2 2s2 2p6 3s23p6 4s2 3d3
Chromium (Cr) 24 1s2 2s2 2p6 3s23p6 4s1 3d5
Manganese (Mn) 25 1s2 2s2 2p6 3s23p6 4s2 3d5
Iron (Fe) 26 1s2 2s2 2p6 3s23p6 4s2 3d6
Cobalt (Co) 27 1s2 2s2 2p6 3s23p6 4s2 3d7
Nickel (Ni) 28 1s2 2s2 2p6 3s23p6 4s2 3d8
Copper (Cu) 29 1s2 2s2 2p6 3s23p6 4s1 3d10
Zinc (Zn) 30 1s2 2s2 2p6 3s23p6 4s2 3d10
Gallium (Ga) 31 1s2 2s2 2p6 3s23p6 4s2 3d10 4p1
Germanium (Ge) 32 1s2 2s2 2p6 3s23p6 4s2 3d10 4p2
Arsenic (As) 33 1s2 2s2 2p6 3s23p6 4s2 3d10 4p3
Selenium (Se) 34 1s2 2s2 2p6 3s23p6 4s2 3d10 4p4
Bromine (Br) 35 1s2 2s2 2p6 3s23p6 4s2 3d10 4p5
Krypton (Kr) 36 1s2 2s2 2p6 3s23p6 4s2 3d10 4p6
Rubidium (Rb) 37 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s1
Strontium (Sr) 38 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s2
Yttrium (Y) 39 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s2 4d1
Zirconium (Zr) 40 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s2 4d2
Niobium (Nb) 41 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s1 4d4
Molybdenum (Mb) 42 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s1 4d5
Technetium (Tc) 43 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s2 4d5
Ruthenium (Ru) 44 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s1 4d7
Rhodium (Rh) 45 1s2 2s2 2p6 3s23p6 4s2 3d10 4p65s1 4d8