Bohr model of Neon atom - How to draw Neon(Ne) Bohr-Rutherford diagram?
The Bohr Model of Neon(Ne) has a nucleus that contains 10 neutrons and 10 protons. This nucleus is surrounded by two-electron shells named K-shell and L-shell. The outermost shell in the Bohr diagram of Neon contains 8 electrons that also called valence electrons.
|Name||Neon Bohr Model|
|Number of neutrons||10|
|Number of protons||10|
|Number of electrons||10|
|Total electron shells||2|
|Electron in the First shell(K)||2|
|Electrons in the Second shell(L)||8|
|Total valence electrons in Neon||8|
How to draw Bohr Model of Neon(Ne)?
Bohr model describes the visual representation of orbiting electrons around the small nucleus. It used different electron shells such as K, L, M, N…so on. These shells hold a specific number of electrons, the electron shell which is closest to the nucleus has less energy and the electron shell which is farthest from the nucleus has more energy.
Bohr diagram is very interesting and easy to draw. Here, we will draw the Bohr diagram of the Neon atom with some simple steps.
Steps to draw the Bohr Model of Neon atom
1. Find the number of protons, electrons, and neutrons in the Neon atom
Protons are the positively charged particles and neutrons are the uncharged particles, both these are constituents of the atom nuclei. Electrons are the negatively charged particles that orbit the nucleus of an atom
To find the number of protons an atom contains, just look at its atomic number.
If the atomic number of atom is 14, then proton will also be 14, if atomic number is 17, then proton will also be 17.
So, the atomic number for Neon is 10, hence, the number of protons in the Neon atom is also 10.
Now, to determine the number of neutrons in an atom, use this formula.
⇒ Number of neutrons in atom = Atomic mass of the atom(rounded to the nearest whole number) – Number of proton in an atom
For example, An atom have 6.991 atomic mass and 3 protons.
Then, to find the number of neutron, round the atomic mass to the near whole number, so, atomic mass 6.991 round to 7.
= (7 – 3 protons) = 4 number of neutrons in the atom
Now, To get the number of neutrons in a Neon atom, look at its atomic mass which is 20.180 rounded to 20, and the number of protons in Neon is 10.
∴ Hence, the number of neutrons in Neon atom = (20 – 10) = 10
It should be noted that “The number of electrons in a neutral atom is equal to the number of protons”.
So, the Neon atom is neutral, hence, its number of electrons will be equal to the number of protons which is ten as we already discussed.
⇒ The number of electrons in the Neon atom = 10
⇒ The number of protons in the Neon atom = 10
⇒ The number of neutrons in the Neon atom = 10
2. Draw the nucleus of an atom
A nucleus is a dense and small region that contains the number of protons and neutrons of an atom.
In this step, we have to draw a small circle that consists of a number of protons and the number of neutrons of a Neon atom.
3. Draw the First electron shell
“An electron shell may be thought of as an orbit followed by electrons around an atom’s nucleus.”
The first electron shell is also called the K-shell, this is the closest shell to the nucleus of an atom and can hold a maximum of two electrons.
As we know, Neon atoms have a total of 10 electrons. So, put two electrons from it, in the first shell, next to each other.
We have successfully drawn the first shell of the Neon atom that can hold 2 electrons. As the Neon atom has a total of 10 electrons, and from 10 electrons we have used two electrons in the first shell.
∴ (10 – 2) = 8 electrons
Therefore, we are left with 8 electrons, let’s put them in the next shells of the Neon atom.
4. Draw the Second electron shell
The second shell also called the L-shell that can hold a maximum of 8 electrons. This shell is drawn after the first electron shell.
Since we already used two electrons in the first shell, now, we have to put the remaining 8 electrons in the second shell.
In the second electron shell, the electrons are added one at a time, starting from the top position then going in a clockwise direction.
In second shell, electrons are added one at a time in clockwise direction as a clock position – 12 o’clock, 3 o’clock, 6 o’clock, 9 o’clock positions.
Once you place the electrons one at a time to each of the four sides(Top – Right – Bottom – Left], start pairing or doubling them.
So, we have to put 8 remaining electrons of the Neon atom in the second shell, hence, start from the top position, put electrons one at a time, and go in a clockwise direction(Top – Right – Bottom – Left). And, finally, pair them up.
Bohr model of the Neon atom
That’s all, this is our Bohr model of the Neon atom that contains 10 protons and 10 neutrons in the nucleus region, and 10 electrons are orbited around the nucleus, two electrons in the first shell, and eight electrons in the second shell.
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Find the Valence electron of Neon through its Bohr diagram
Valence electrons are found in the outermost shell of an atom and they can take participate in the formation of a chemical bond. These electrons have more energy compare to the inner shell electrons.
From the Bohr diagram of an atom, we can easily find the number of valence electrons in an atom by looking at its outermost shell.
So, we have to find a valence electron in the Neon atom, for this, look at its Bohr diagram.
Bohr’s diagram of Neon has only two electron shells (K and L), the inner shell is the K-shell and the outermost shell is L-shell.
Hence, the electrons found in the L-shell of the Neon atom are its valence electrons because it is the outermost shell also called the valence shell.
The L-shell or outer shell of the Neon Bohr model contains 8 electrons, therefore, the number of valence electrons in the Neon atom is 8.
Electron dot diagram of a Neon atom
The electron dot diagram also called the lewis structure which represents the valence electrons of atoms.
As, from the Bohr diagram of Neon, we got to know, it has 8 valence electrons.
So, just represent these 8 valence electrons around the Neon atom as a dot.
The electron configuration of Neon
“Electron configuration is the distribution of electrons of an atom or molecule in atomic or molecule orbitals”
Neon has an atomic number of 10 and it contains a total number of 10 electrons. From the Bohr model of Neon, we know, that 2 electrons are in the K-shell and 8 electrons are in the L-shell.
So, based on the shell, the electronic configuration of the Neon atom is [2, 8].
Or the electronic configuration of Neon is 1s22s22p6 since it contains a total of 10 electrons, the first two-electron will go in the 1s orbital, the next two in the 2s orbital, and the remaining six electrons will go in the 2p orbital.
S orbital can hold maximum of 2 electrons and P orbital can hold maximum of 6 electrons.
- Neon orbital diagram, electron configuration, and valence electrons
- How to find the electron configuration for any atom?
How many electron shells a Neon Bohr model contains?
Electron shells also called energy levels, you can find the number of electron shells for an element by knowing its period number in the periodic table.
The elements or atoms in the first period of the periodic table have one energy level or one electron shell, same as, the elements in the second period have two energy levels or two-electron shells, and so on…
So, the Neon atom belongs to the 2nd Period in the periodic table, hence, the number of electron shells for the Bohr model of Neon will be 2 (K-shell and L-shell).
What is the outer shell of the Bohr diagram of the Neon atom?
The outermost shell also called the valence shell, which contains the valence electrons of the atom.
According to the Bohr diagram of Neon, the outer shell is L-shell which contains 8 valence electrons.
Properties of Neon
- Neon is a colorless, odorless, and noble gas in nature.
- It produces an orange-red glow when placed in an electric field.
- It has a zero oxidation state.
- It has a face-centered cubic crystal structure.
- It is chemically inert and belongs to the noble gas family in the periodic table.
- The Bohr model of Neon is drawn with only two electron shells, the first shell contains 2 electrons and the second shell contains 8 electrons.
- Neon is neutral and its atomic number is 10, hence, the number of protons and electrons available for its Bohr diagram is also 10.
- The number of neutrons for the Bohr diagram of Neon can be found by subtracting the number of protons from the atomic mass(rounded to the nearest whole).
- The electron configuration of Neon in terms of the shell is [2, 8], or in normal form, it is [He] 2s2 2p6.