In olden days scientists considered energy to flow continuously and so any amount of fraction is possible. But Planck imagined in a revolutionary way that energy is not coming out or getting absorbed continuously but only in small packets. That packet is named as quanta which has energy given by hv, here h is Planck's constant and v is the frequency of radiation. So 1/2 hv is not possible but n * hv where n is an integer.
Planck's idea was that in certain situations - he specifically analyzed the absorption and emission of light by atoms - energy is absorbed, not continuously, but in "chunks", which are called "quanta".
A single quantum is the minimum amount of
energy that can be lost or gained by an atom.
Therefore, matter loses or gains energy only in
multiples of the quantum.
Quantum energy is related to the frequency of the emitted radiation by the equation Equantum = hv. Quantum is the minimum amount of energy that can be gained or lost by an atom.
When a substance evaporates, it gains energy.
no se
atoms are not lost or gained in a chemical reaction
Electrons are both gained and lost. Electrons are both gained and lost.
Atoms that have lost or gained electron(s) are called ions. If they are positively charged (lost an electron(s)), they are called cations. If they are negatively charged (gained an electron(s), they are called anions.
no
give out energy
Vaporization is an endothermic process. It takes energy to heat up material to the point that it vaporizes, so energy is gained by the material being vaporized and lost by the environment.
90 % is lost.
When a substance evaporates, it gains energy.
Some energy is changed to heat and lost. The main energy is still be converted to light beam.
Condensation is exothermic. Energy is released during condensation. Energy can not be "lost" but merely change from one form to another.
You think to quanta.
quantum
it depends on conversion. wind to wind energy. Sun to solar Energy. and water to hydro have no loss only gained but on other hand electric to heat energy like also some heat will be lost. in nuclear energy some energy also lost during conversion.
As heat is a form of energy, it isn't lost or gained, it's just converted into another form of energy.
When a substance changes state, Energy within the substance is gained or lost, but the composition is unchanged.