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118 Elements with Symbols and Valencies

23rd September 202316th March 2021 by Pravin Babu R

Valencies of all 118 elements No SYMBOL ELEMENT VALENCE 1 H Hydrogen 1 0 -1 2 He Helium 0 3 Li Lithium 1 -1 … Read more

* * All the Notes in this blog, are referred from Tamil Nadu State Board Books and Samacheer Kalvi Books. Kindly check with the original Tamil Nadu state board books and Ncert Books.