First 15 Elements of periodic table by atomic number
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Hydrogen (H)
1
Neon (Ne)
10
Sodium (Na)
11
Magnesium (Mg)
12
Aluminum (Al)
13
Silicon (Si)
14
Phosphorus (P)
15
helium (He)
2
lithium (Li)
3
beryllium (Be)
4
boron (B)
5
carbon (C)
6
nitrogen (N)
7
oxygen (O)
8
flourine (F)
9
