write the electronic configuration and valency of 1 to 30 elements
Answers
Explanation:
1. Hydrogen (H)
Valency = 1
Electronic Configuration : 1
2. Helium (He)
Valency = 0
Electronic Configuration : 2
3. Lithium(Le)
Valency = 1
Electronic Configuration : 2 , 1
4. Beryllium(Be)
Valency = 2
Electronic Configuration : 2 , 2
5. Boron(B)
Valency = 3
Electronic Configuration : 2 , 3
6. Carbon(C)
Valency = 4
Electronic Configuration : 2 , 4
7. Nitrogen(N)
Valency = 3
Electronic Configuration : 2 , 5
8. Oxygen(O)
Valency = 2
Electronic Configuration : 2 , 6
9. Fluorine(F)
Valency = 1
Electronic Configuration : 2 , 7
10. Neon (Ne)
Valency = 0
Electronic Configuration : 2 , 8
11. Sodium(Na)
Valency = 1
Electronic Configuration : 2 , 8 , 1
12. Magnesium(Mg)
Valency = 2
Electronic Configuration : 2 , 8 , 2
13. Aluminium(Al)
Valency = 3
Electronic Configuration : 2 , 8 , 3
14. Silicon(Si)
Valency = 4
Electronic Configuration : 2 , 8 , 4
15. Phosphorus(P)
Valency = 5 , 3
Electronic Configuration : 2 , 8 , 5
16. Sulphur(S)
Valency = 2
Electronic Configuration : 2 , 8 , 6
17. Chlorine(Cl)
Valency = 1
Electronic Configuration : 2 , 8 , 7
18. Argon (Ar)
Valency = 0
Electronic Configuration : 2 , 8 , 8
19. Potassium(K)
Valency = 1
Electronic Configuration : 2 , 8 , 8 , 1
20. Calcium (Ca)
Valency = 2
Electronic Configuration : 2 , 8 , 8 , 2
21. Scandium (Sc)
Valency = 3
Electronic Configuration : 2 , 8 , 9 , 2
22. Titanium (Ti)
Valency = 4
Electronic Configuration : 2 , 8 , 10 , 2
23. Vanadium (V)
Valency = 5 , 4
Electronic Configuration : 2 , 8 , 11 , 2
24. Chromium (Cr)
Valency = 2
Electronic Configuration : 2 , 8 , 13 , 1
25. Manganese(Mn)
Valency = 7 , 4 , 2
Electronic Configuration : 2 , 8 , 13 , 2
26. Iron (Fe)
Valency = 2 , 3
Electronic Configuration : 2 , 8 , 14 , 2
27. Cobalt (Co)
Valency = 3 , 2
Electronic Configuration : 2 , 8 , 15 , 2
28. Nickel (Ni)
Valency = 2
Electronic Configuration : 2 , 8 , 16 , 2
29. Copper (Cu)
Valency = 2 , 1
Electronic Configuration : 2 , 8 , 18 , 1
30. Zinc(Zn)
Valency = 2
Electronic Configuration : 2 , 8 , 18 , 2
Answer:
Element Electronic configuration Valency
Hydrogen 1 1s¹ 1
Helium 2 1s² 0
Lithium 3 1s²2s¹ 1
Beryllium 4 2s² 2
Boron 5 2s² 2p1 3
Carbon 6 2s² 2p2 4
Nitrogen 7 2s² 2p3 3
Oxygen 8 2s² 2p⁴ 2
Fluorine 9 2s²2p5 1
Neon 10 2s²2p6 0
Sodium (Na) 11 3s¹ 1
Magnesium (Mg) 12 3s² 2
Aluminium 13 3s² 3p¹ 3
Silicon 14 3s² 3p² 4
Phosphorus 15 3s² 3p³ 3
Sulphur 16 3s² 3p⁴ 2
Chlorine 17 3s² 3p⁵ 1
Argon 18 3s² 3p⁶ 0
Potassium (K) 19 4s¹ 1
Calcium 20 4s² 2
Scandium 21 3d¹ 4s² 3
Titanium 22 3d² 4s² 4
Vanadium 23 3d³ 4s² 5,4
Chromium 24 3d⁵ 4s¹ 2
Manganese 25 3d5 4s2 7, 4, 2
Iron (Fe) 26 3d6 4s2 2, 3
Cobalt 27 3d⁷ 4s² 3, 2
Nickel 28 3d⁸ 4s² 2
Copper (Cu) 29 3d¹⁰ 4s¹ 2, 1
Zinc 30 3d¹⁰ 4s² 2
Explanation:
- The distribution of electrons in an atom can be described by electronic configuration.
- Electrons are present in an atom and the number of electrons is equal to the number of protons present inside the nucleus.
- The electrons are present in shells and subshells.
- The number of electrons can be denoted in the super subscript.
- The valency of an element is identified by the number of electrons present in the outer shell.
- The elements of same group have the same valency in periodic table.
- According to the valency of an element, the combining power of an element is obtained.
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