Question

Guys please give me 1 to 20 elements with their atomic no. fast it's urgent.... ​

Answer 1

Answer:

1 hydrogen

2 helium

3 lithium

4 beriylium

5 boron

6 carbon

7 nitrogen

8 oxygen

9 fluorine

10 neon

11 sodium

12 magnesium

13 aluminium

14 silicon

15 phosphorus

16 sulphur

17 chlorine

18 argon

19 potassium

20 calcium

Explanation:

THE NUMBERS WHICH I HAVE WRITTEN 1 TO 20 ARE ONLY THE ATOMIC NUMBERS.

HOPE IT HELPS YOU.....❤

Answer 2

Explanation:

ATOMIC NO. ELEMENT.

1. HYDROGEN. H

2. HELIUM. HE

3. LITHIUM. LI

4. BERYLLIUM. BE

5. BORON. B

6. CARBON. C

7. NITROGEN. N

8. OXYGEN. O

9. FLUORINE. F

10. NEON. NE

11. SODIUM. NA

12. MAGNESIUM. MG

13. ALUMINIUM. AL

14. SILICON. Si

15. . PHOSPHORUS. P

16. SULPHUR. S

17. CHLORINE. Cl

18. ARGON. AR

19. POTASSIUM. K

20. CALCIUM. Ca