Chemistry problems - choose a subcategory or a problem

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Access dozens of problems about atoms, molecules, cells, aluminium, iridium, protons, neutrons, electrons, charge magnitude, Avogadro’s number, mass, unit cells, crystals, volumes of unit cells or other chemical frequently used terms.

Atomic structure

1. What is the value of Avogadro’s number?	level 2	log in
2. What is the mass of an electron?	level 2	log in
3. The mass of a proton or of a neutron	level 2	log in
4. Charge magnitude of electrons or protons	level 2	log in