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An electron pair are two electrons which occupy the same orbital in an atom or molecule. Paired electrons are represented by two dots.
Electrons
Lewis dot formula
They are the electrons. They orbits around them
These would be the elements in group 16. The elements in group 16 have six valence electrons. Those valence electrons are represented in a Lewis diagram by surrounding them with six dots. When drawing a diagram for an element with six valence electrons, there should be two pairs of dots (four total), and two separate dots.
it has 6
An electron pair are two electrons which occupy the same orbital in an atom or molecule. Paired electrons are represented by two dots.
Electrons
Yes, the dots in an electron dot diagram represent valence electrons.
There are 3 shells. The first containing 2 electrons then the second containing 8 electrons and the third(the valence shell) containing 7. In total it has 17 electrons. This should help:
Protons, nuetrons, and electrons
the dots are the number of electrons in an elements valance shell (last shell). if it has no dots, it means it has lended its electrons to another element to become stable like its nearest noble gas.
Lewis dot formula
yes, the number of dots represent the number of valence electrons in the periodic table.
it has 6
The Carbon contributes 4 valance electrons and each oxygen contributes 6 valance electrons for a total of 16. Start by putting the Carbon in the middle of the two Oxygens. Each oxygen will have a double bond connecting it to the C in the middle. The left over valance electrons will be put on the oxygens. For drawing purposes you could put two dots on the top and two dots on the bottom of each oxygen. Since I can't draw it out for you here it will look roughly like this: ::O=C=O:: The only difference is that instead of having the four dots together on the Oxygens, like I said above, you would put two dots on the top and two dots on the bottom of each Oxygen. If you count the dots and bonds, each element has the 8 valance electrons that it wants and you have used all 16 that you needed to.
It would be "T" shaped. ClBr3 is Chlorine Tribromide. Chlorine and Bromide each have 7 balanced electrons, so 7+7(3) is 28 balanced electrons. In a Lewis Drot structure, you'd start by having the three bromides surrounding the chlorine atom. Each bromide would have eight dots, sharing two of those dots with chlorine. Chlorine can have an expanded octet, so the chlorine atom would have four total dots at its top. That would make for 28 balanced electrons.