Chemistry problems - choose a subcategory or a problem

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 ![]() |
View all problems from category «Atomic structure»
Crystal structures
1. Find the radius of the iridium atom | level 34 ![]() | log in ![]() |
2. Volume of a unit cell of aluminium | level 11 ![]() | log in ![]() |