Chemistry, asked by Anonymous, 4 months ago

first 20 elements and their symbols and atomic number ​

Answers

Answered by vermanushka7487
1

Explanation:

Atomic Number Element Symbol

17 Chlorine Cl

18 Argon Ar

19 Potassium. K

20 Calcium. Ca

Answered by mayankgargmayankgarg
1

Answer:

Hydrogen has H symbol

Helium has He

lithium has li

Berryllium has Be

Boron has B

Carbon has C

Nitrogen has N

Oxygen has O

Fluorine has F

Neon has Ne

Sodium has Na

Magnesium has Mg

Aluminum has Al

Silicon has Si

phosphorus has p

Sulphur has S

Chlorine has Cl

Argon has Ar

Potassium has K

Calcium has Ca

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