Question

tell me the first 20 elements and their masses. plz.... be quick !!​

Answer 1

Answer:

Argon

Potassium

Calcium

Scandium

Chlorine

Hydrogen. H.

Helium. He.

Lithium. Li.

Carbon. C.

Nitrogen. N.

Oxygen. O.

Sodium. Na.

Magnesium. Mg.Titanium Ti

Vanadium V

chromium Cr

PLS mark as BRAINLIEST answer

Answer 2

Answer:

Atomic

Number Symbol Name Atomic Mass

(amu, g/mol)

1 H Hydrogen 1.00797

2 He Helium 4.00260

3 Li Lithium 6.941

4 Be Beryllium 9.01218

5 B Boron 10.81

6 C Carbon 12.011

7 N Nitrogen 14.0067

8 O Oxygen 15.9994

9 F Fluorine 18.998403

10 Ne Neon 20.179

11 Na Sodium 22.98977

12 Mg Magnesium 24.305

13 Al Aluminum 26.98154

14 Si Silicon 28.0855

15 P Phosphorus 30.97376

16 S Sulfur 32.06

17 Cl Chlorine 35.453

18 Ar Argon 39.948

19 K Potassium 39.0983

20 Ca Calcium 40.08