Homework question

when a toaster oven is in use, electrical energy is transformed into what types of energy?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

How is the atomic number of a nucleus changed by alpha decay