This pack of blue atoms are used typically to represent nitrogen atoms and is for extending your existing set or for replacing lost atoms. Each pack contains 10 balls with four holes in each ball in a tetrahedral array. Each atom is 23 mm diameter.
Why would I need these? You could use them to represent a tetrahedral nitrogen atom in the ammonium cation or with the fourth hole filled by an orbital shape (available separately) to represent an amine such as trimethylamine.
This pack of white Molydome style atoms are used typically to represent hydrogen atoms in a compact way and is for extending your existing set or for replacing lost atoms.
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