He came up with his model of the hydrogen atom, containing this idea, in 1913.
That's almost exactly 100 years ago. Neils Bohr came from Denmark and they will be celebrating this centenary, in Denmark.
Schrodinger and Heisenberg
it says in their biograghy
Bohr(1911)
try doing your homework by yourself though
but your welcome
Niels Bohr. (in 1913)
Bohr
Bohr
Electrons with different energy levels orbit in the different shells of the atom. The electrons located in the outer shell are called valence electrons, they have the most energy and are the ones who participate most in bonding.
Electrons are basically surrounding the nucleus (containing the protons and the neutrons), and are "swirling" around the nucleus, forming a cloud like shape around the nucleus.
The electron configuration of an element shows the number of electrons in their energy levels and orbitals. For example, the electron configuration of a neutral magnesium atom, Mg, with 12 electrons, is 1s22s22p63s2. This means that there are two electrons in the s orbital of the first energy level, two electrons in the s orbital and six electrons in the p orbital of the second energy level, and two electrons in the s orbital of the third energy level. The number in front of each letter represents the energy level, the letter represents the orbital, and the superscripts represent the number of electrons in the orbital.
An atom's structure is like a ladder because of the energy levels. Each step is a different level of energy. The bottom step is the lower energy level and the top step is the higher energy level.
None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.
Bohr
Neil Bohr discovered that each electron shell has specified energy levels and limited place for electrons.
Electrons occupied certain discrete energy levels around the nucleus.
Electrons occupied certain discrete energy levels around the nucleus.
Electrons occupied certain discrete energy levels around the nucleus.
It means that electrons (for example) can only occupy certain energy levels.
Electrons are located in energy levels within the electron cloud.
What has three energy levels and six valence electrons
What has three energy levels and six valence electrons
The concept of quantized energy levels, first proposed by Neils Bohr, states that electrons can only exist in certain possible energy levels, which he pictured as orbits around a nucleus since the energy of an electron is proportional to its distance from the nucleus.
that depends on the number of electrons the more electrons the more energy
Sodium atoms do have electrons that are arranged in energy levels. The electron configuration of sodium is 1s22s22p63s1.