Question

only atomic number of first 30 elements​

Answer 1

Answer:

Mark it as brainliest

Yes

Explanation:

The serial number is itself the atomkc number

Answer 2

Atomic Number Chemical Symbol Element Name Atomic Weight (u)

1 H Hydrogen 1.008

2 He Helium 4.002602

3 Li Lithium 6.94

4 Be Beryllium 9.0121831

5 B Boron 10.81

6 C Carbon 12.011

7 N Nitrogen 14.007

8 O Oxygen 15.999

9 F Fluorine 18.99840316

10 Ne Neon 20.1797

11 Na Sodium 22.98976928

12 Mg Magnesium 24.305

13 Al Aluminium 26.9815385

14 Si Silicon 28.085

15 P Phosphorus 30.973762

16 S Sulfur 32.06

17 Cl Chlorine 35.45

18 Ar Argon 39.948

19 K Potassium 39.0983

20 Ca Calcium 40.078

21 Sc Scandium 44.955908

22 Ti Titanium 47.867

23 V Vanadium 50.9415

24 Cr Chromium 51.9961

25 Mn Manganese 54.938044

26 Fe Iron 55.845

27 Co Cobalt 58.933194

28 Ni Nickel 58.6934

29 Cu Copper 63.546

30 Zn Zinc 65.38