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Question

What are the first ten elements and sort out the metals and non metals

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Solution

Following are the atomic numbers and mass numbers of the first ten elements with their symbols:

ELEMENT SYMBOL ATOMIC NUMBER ATOMIC MASS
Hydrogen H 1 1
Helium He 2 4
Lithium Li 3 6.94
Beryllium Be 4 9
Boron B 5 10.81
Carbon C 6 12
Nitrogen N 7 14
Oxygen O 8 16
Fluorine F 9 19
Neon Ne 10 20

Metals : Lithium, Beryllium
Non-metals: Hydrogen, Carbon, Nitrogen , Oxygen , Fluorine
Noble Elements : Helium, Neon
Metalloid: Boron

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