1.hydrozen
2.helium
3.lithium
4.berylium
5.boron
6.carbon
7.nitrozen
8.oxygen
9.Flurpine
10. neon
11.sodium
12.magnesium
13.aluminium
14.silicon
15.phrosphours
16.sulfur
17.chlorine
18.argon
19.pottasium
20.calicum
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baldie1eki
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