Cool game but there are some bugs I went through and tested the elements and two of them don't work also AlCl3 I think got activated by some totally different combination of Al and H here is the table I made
values:
AlCl3 9 3 14 4
As2O3 6 10 14 1
AsH3 9 7 13 1
Be2C 6 4 14 2
BeH2 7 4 9 2
Br2 21 2 17 1
CaBr2 22 3 19 5
CaCl2 15 3 19 5
CaF2 14 3 17 5
CH4 10 3 17 1
Cl2 14 2 17 1
CO 5 6 13 1
CO2 5 7 14 1
F2 13 1 13 1
GaAs impossible to get (broken)
GaN 4 9 11 1
HCl 13 2 16 1
HF 12 2 12 1
H2 7 2 8 1
H2O 7 7 9 1
H2S 8 5 9 1
LiBr 18 6 16 1
LiOH 7 7 12 1
MgCO3 7 9 16 1
MgO 6 6 8 1
NaCl 13 4 16 1
NaH 8 4 12 1
NH3 impossible to get (broken)
N2 3 6 11 1
NO2 3 8 11 1
O2 1 7 6 1
O3 2 8 6 1
SeO2 4 8 8 1
SeS2 11 6 8 1
SiC 5 4 13 1
SiO2 4 8 6 1
SO2 4 8 8 1 also here is the image showing that if it weren't broken I could I could have 100%ed the game