Wrte down the electronic configuration of the first three elements of group 1 How many valence electrons are present in each of these elements
Answers
Explanation:
Element = Hydrogen
Element = Hydrogen Atomic Number = 1
Element = Hydrogen Atomic Number = 1Symbol Electron = H
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron =
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron = Element = Helium
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron = Element = Helium Atomic Number = 2
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron = Element = Helium Atomic Number = 2Symbol Electron = He
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron = Element = Helium Atomic Number = 2Symbol Electron = HeElectronic Configuration = 2
Element = Hydrogen Atomic Number = 1Symbol Electron = HElectronic Configuration = 1Valence Electron = Element = Helium Atomic Number = 2Symbol Electron = HeElectronic Configuration = 2Valence Electron = 2
Valency is 0
Element = Lithium
Element = Lithium Atomic Number = 3
Element = Lithium Atomic Number = 3Electronic Configuration = (2,1)
Element = Lithium Atomic Number = 3Electronic Configuration = (2,1)ValencyElectron = 1
Electron = 1Valency = 1
Answer:
The first three elements of group 1 are :- H, Li, Na
Elements Electronic configuration No. of valence electrons(K,L,M)
H 1 K = 1
Li 2, 1 K = 2, L = 1
Na 2, 8,1 K = 2, L = 8 , M =1
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