How did Bohr explain the emission spectrum?

Niels Bohr explained the line spectrum of the hydrogen atom by assuming that the electron moved in circular orbits and that orbits with only certain radii were allowed.

How did Bohr explain atomic emission spectra quizlet?

Electrons present in the orbits closer to the nucleus have larger amounts of energy. Niels Bohr proposed that electrons circled the nucleus of an atom in a planetary-like motion. Bohr’s theory explained the line spectra of the hydrogen atom. According to the Bohr model of atoms, electrons occupy definite orbits.

How did Bohr use quantum theory to explain the atomic emission spectrum of hydrogen?

Bohr’s model of the hydrogen atom is based on three postulates: (1) an electron moves around the nucleus in a circular orbit, (2) an electron’s angular momentum in the orbit is quantized, and (3) the change in an electron’s energy as it makes a quantum jump from one orbit to another is always accompanied by the …

What did Bohr’s theory explain?

In 1913, Niels Bohr proposed a theory for the hydrogen atom, based on quantum theory that some physical quantities only take discrete values. Electrons move around a nucleus, but only in prescribed orbits, and If electrons jump to a lower-energy orbit, the difference is sent out as radiation.

What was Niels Bohr’s theory was based on?

How was Bohr able to discover the energies of each energy level in the hydrogen atom?

By keeping the electrons in circular, quantized orbits around the positively-charged nucleus, Bohr was able to calculate the energy of an electron in the nth energy level of hydrogen: E ( n ) = − 1 n 2 ⋅ 13.6 eV E(n)=-\dfrac{1}{n^2} \cdot 13.6\,\text{eV} E(n)=−n21⋅13.

What does Bohr’s model explain?

The Bohr model postulates that electrons orbit the nucleus at fixed energy levels. Orbits further from the nucleus exist at higher energy levels. When electrons return to a lower energy level, they emit energy in the form of light.

How did Bohr prove that an atom must exist?

Niels Bohr suggested that electrons in an atom were restricted to specific orbits and has a fixed boundaries around the atom’s nucleus. Bohr argued that an electron in a given orbit has a constant energy, thus he named these orbits energy levels.

How did Bohr determine that electrons are in energy levels?

Bohr proposed that electrons do not radiate energy as they orbit the nucleus, but exist in states of constant energy that he called stationary states. This means that the electrons orbit at fixed distances from the nucleus (see below). Bohr’s work was primarily based on the emission spectra of hydrogen.