Question

hydrogen, helium, lithium, beryllium,boron, carbon, nitrogen. tell me the symbol and atomic number now please​

Answer 1

Sr No. Symbol. Atomic number

Hydrogen. H. 1

Helium. He. 2

Lithium. Li. 3

Beryllium. Be. 4

Boron. B. 5

Carbon. C. 6

Nitrogen. N. 7

Answer 2

hydrogen-H-1

Helium-He-2

Lithium-Li-3

Berylliym-Be-4

Boron-Bo-5

Carbon-Ca-6

Nitrogen-N-7

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