Using equation e=(hcrh)(1n2)=(−2.18×10−18j)(1n2), calculate the energy of an electron in the hydrogen atom when n= 6.

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as

Which samples do the atoms have the least kinetic energy