Draw a Bohr diagram of the protons and electrons in each of the following.

a) an atom of magnesium

Do I draw this with 19 atoms surrounding the shell of Magnesium around?

10 answers

I mean 12 atoms.

Yes 13

But the 12 electrons are in different shells.
http://www.green-planet-solar-energy.com/images/magnesium-bohr.gif

I mean 12 not 13 of course

13?

Will the REAL Damon please stand up.

Thanks for the clarification

2 s electrons in the first shell. That fills it with 2

2 s and 6 p electrons in the second shell. That fills it with 8

The last 2 s electrons are in the third shell

LOL - That confused me too :)

Thank you very much sir

To draw a Bohr diagram for an atom of magnesium, you need to determine the number of protons and electrons in a neutral magnesium atom.

First, you need to know the atomic number of magnesium, which is 12. This tells you that a neutral magnesium atom has 12 protons in its nucleus.

Next, you need to determine the number of electrons. In a neutral atom, the number of electrons is equal to the number of protons. So, a neutral atom of magnesium has 12 electrons as well.

Now, let's draw the Bohr diagram:

1. Start by drawing a circle to represent the first energy level or the innermost shell. Label this shell with the number 1.
2. Place 2 electrons in the first energy level. Draw two dots or crosses to represent the electrons in the shell.
3. Move to the second energy level or the outer shell. Label this shell with the number 2.
4. Since magnesium has 12 electrons, you will place the remaining 10 electrons in the second energy level or outer shell. Distribute these electrons in pairs, starting from the top and moving clockwise around the circle, until you have placed all 10 electrons.
5. Finally, make sure to label the element inside the circle as "Mg" to represent magnesium.

So, the Bohr diagram for an atom of magnesium will have 2 electrons in the first energy level and 10 electrons in the second energy level.

Please note that the atomic number (protons) and the number of electrons determine the identity of an atom.