Well thanks for the answer. I did a search (I should've remembered to do that before asking, sorry :/) and it looks like we should know the first 2 rows.
Well thanks for the answer. I did a search (I should've remembered to do that before asking, sorry :/) and it looks like we should know the first 2 rows.
I'd say you should know the halogens, nobles, alkali and alkaline (lower MW ones) and then the second row (and maybe sulfur and phosphorus for bonding abilities)
edit: and you should also know the trends, MW, size, electron affinity, electronegativity
Thanks but I actually read reports of sometimes the info not all being included, like in this post. Also for trends and stuff like which is more electronegative, I or Cl, we'd have to know the positions at least.
Thanks CK, I think that sounds good and comprehensive.
I'd memorize a few molecular weights of common molecules as a time saver. They should give you enough info to figure it out but it will save some time if you already know the MW of H2O, CO2, NO2, for example.
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