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In the helium Bohr model, the nucleus is central, housing 2 protons and 2 neutrons. Orbiting this nucleus is a single electron shell, accommodating 2 electrons.
To draw the Bohr model of helium, note the 2 protons, 2 neutrons, and 2 electrons. Start by illustrating the nucleus, and then depict the first electron shell.
Steps
Write protons, neutrons, and electrons of helium atom
Helium has 2 protons, 2 neutrons, and 2 electrons.
Learn how to find: Helium protons neutrons electrons
Draw nucleus of helium atom
The nucleus of a helium atom contains 2 protons and 2 neutrons. So draw the nucleus of helium atom as follows:
Now in the next step, draw the 1st electron shell and start marking electrons.
Draw 1st electron shell
Remember that we have a total of 2 electrons.
The 1st electron shell (containing s subshell) can hold up to a maximum of 2 electrons. So draw the 1st electron shell as follows:
In the above image, 1 represents the 1st electron shell that contains 1s subshell. And the green color represents the number of electrons in that subshell. This means that the 1st electron shell has a total of 2 electrons.
That’s it! This is the final Bohr model of helium atom as we have only 2 electrons and that are marked in the 1st electron shell.
Next: Lithium Bohr model
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External links
- File:2 He Bohr model.png – Wikimedia Commons
- Bohr Diagrams of Atoms and Ions – Chemistry LibreTexts
- How to draw Bohr diagram for Helium(He) atom – Topblogtenz
- Applying Bohr’s model for Helium atom – Chemistry Stack Exchange
- Helium Bohr model | Science – ShowMe
- Helium atom – Wikipedia
- Helium atom and bohr model – Physics Forums
- Chemical Elements.com – Helium (He) – Chemical Elements.com
- How to Build the Atomic Structure of Helium – Sciencing
- What is the Bohr model of helium atom? – Quizlet
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