group number of elements 1to30
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Answer:
sorry I know about 20
1 hydrogen
2 helium
3 lithium
4 beriliyum
5 boron
6 carbon
7 nitrogen
8 oxygen
9 neon
10 fluorine
11 sodium
12 magnesium
13 aluminum
14 silicon
15 Phosphorus
16 sulphur
17 chlorine
18 argon
19 potassium
20 calcium
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