CBSE Class 10 Answered
Any Easy Method to learn atomic masses of elements in the periodic table
Asked by Nihla | 14 Mar, 2017, 06:17: PM
Expert Answer
Try to remember atomic masses of first 20 elements for class X.
Elements like like He, Li, C, N, O, Ne, Si, S, Cl, and Ca have atomic masses double the atomic number.
Elements like Be, B, F, Na, Mg, Al, P, Ar and K do not have atomic masses double the atomic number. For such elements first double the atomic number and add 1.
Answered by | 14 Mar, 2017, 06:26: PM
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