# What were the main contributions of Planck and Einstein to the model of the atom?

## What were the main contributions of Planck and Einstein to the model of the atom?

Einstein extended the idea to explain photoelectric effect. Neils Bohr, the danish physics giant introduced quantized non radiating energy levels in an atom in contradiction to Maxwell’s EM theory and incorporated Planck’s concept of photons to explain the existence of discrete lines in the atomic spectra.

## What experiment did Planck do?

Experimental observations on the wavelength distribution of the energy emitted by a black body as a function of temperature were at variance with the predictions of classical physics. Planck was able to deduce the relationship between the ener gy and the frequency of radiation.

**How did Max Planck impact society?**

Max Planck made many contributions to theoretical physics, but his fame rests primarily on his role as originator of the quantum theory. This theory revolutionized our understanding of atomic and subatomic processes, just as Albert Einstein’s theory of relativity revolutionized our understanding of space and time.

**Did Niels Bohr and Max Planck contribute to the atomic theory?**

Niels Bohr provided the explanation by incorporating Max Planck’s quantum theory into Rutherford’s atomic model. He envisioned specific discrete energy levels (i.e., shells) for the electrons within which they could move yet not emit radiation.

### What did Planck’s theory explain?

Planck postulated that the energy of light is proportional to the frequency, and the constant that relates them is known as Planck’s constant (h). His work led to Albert Einstein determining that light exists in discrete quanta of energy, or photons.

### Why is Max Planck important?

Max Planck made many contributions to theoretical physics, but his fame rests primarily on his role as an originator of quantum theory. This theory revolutionized our understanding of atomic and subatomic processes.

**What are the main points of Planck quantum theory?**

According to Planck’s quantum theory, Different atoms and molecules can emit or absorb energy in discrete quantities only. The smallest amount of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as quantum.