Follow these instructions:
Add the atomic numbers of the two substances used in the experiment.
Add 29, and you'll get the number you're looking for!
Suivez les instructions :
Additionnez les numéros atomiques des deux produits utilisés dans l'expérience
Ajoutez 29 et vous obtiendrez le numéro recherché !


Chemistry was not my best subject at school but with a bit of help from Hubby I've travelled to the Moselle, I've brought Hubby to as we have travelled through but never stayed
RépondreSupprimerFirst, I'll head towards the Moselle Department.
RépondreSupprimerI had to look up the period table but now am headed to departément 57, Moselle!
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