Aplatinum wedding band contains 0.077 mol of platinum. how many atoms of platinum are in the 15-gram platinum wedding band? a) 3.09 x 1021 atoms b) 4.64 x 1022 atoms c) 7.82 x 1024 atoms d) 1.17 x 1026 atoms

The pressure in a fluid is affected by which characteristics of that fluid

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.