Blog

The removal of an electron from an atom is called

Discrete wavelengths of light are emitted by an excited gas because

Einstein won the Nobel Prize for explaining

The law of poles states that like magnetic poles ______________ and unlike magnetic poles ______________.

The lines in the visible region of the hydrogen spectrum arise from transitions from higher levels back to the level where n equals

Who won the Nobel Prize for explaining the photoelectric effect?

A system of an electron and a neutron has a net charge of

When an electron goes from the ground state to an excited state,

The transitions of an electron in the hydrogen atom to the n = 2 level result in the

When starting a truck engine, a 12-V battery supplies 250 A of current for 12.0 seconds. Calculate the energy in kilo-joules expended by the battery.