Periodic table trends

Periodic Table elements name, sign & atomic weight for 1 to 10 elements

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Periodic table trends

Modern period table

Click on atom name to know more details about each atom in table which is given below.

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Sr. No / Atomic number	Atom name	Sign of atom	Atomic weight [amu / (gm/mol)]
1	Hydrogen	H	1.008
2	Helium	He	4.0026
3	Lithium	Li	6.94
4	Berillum	Be	9.0122
5	Boron	B	10.81
6	Carbon	C	12.011
7	Nitrogen	N	14.007
8	Oxygen	O	15.999
9	Fluorine	F	18.998
10	Neon	Ne	20.180
11	Sodium	Na	22.990
12	Magnesium	Mg	24.305
13	Aluminium	Al	26.982
14	Silicone	Si	28.085
15	Phosphorus	S	30.974
16	Sulphur	P	32.06
17	Chlorine	Cl	35.45
18	Argon	Ar	39.948
19	Potesium	K	39.098
20	Calcium	Ca	40.078