Question

the atomic number and the symbol of first 20 elements from the periodic table..answer right if you want brainliest.. ^_^

Answer 1

Hydrogen H

Helium He

Lithium Li

Beryllium Be

Boron B

Carbon C

Nitrogen N

Oxygen O

Fluorine F

Neon Ne

Sodium Na

Magnesium Mg

Aluminium Al

Silicon Si

Phosphorus P

Sulfur S

Chlorine Cl

Argon Ar

Potassium K

Calcium Ca

All in order from first to last

Please mark as brainliest

Answer 2

Answer:

atomic number = 1. element = hydrogen (H)

atomic number = 2. element = helium (He)

atomic number = 3. element = lithium (Li)

atomic number = 4. element = beryllium (Be)

atomic number = 5. element = boron (B)

atomic number = 6. element = carbon (C)

atomic number = 7. element = nitrogen (N)

atomic number = 8. element = oxygen (O)

atomic number = 9. element = fluorine (F)

atomic number = 10. element = neon (Ne)

atomic number = 11. element = sodium (Na)

atomic number = 12. element = magnesium (Mg)

atomic number = 13. element = aluminium (Al)

atomic number = 14. element = silicon (Si)

atomic number = 15. element = phosphorus (P)

atomic number = 16. element = sulphur (S)

atomic number = 17. element = chlorine (Cl)

atomic number = 18. element = argon (Ar)

atomic number = 19. element = potassium (K)

atomic number = 20. element = calcium (Ca)