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Lewis Dot Structures
i dont understand the lewis dot structure theory, i looked for help, but i cant find any. so if you can help me, answer this question please.
What are the lewis dot structures for Silicon, Sodium, Beryllium, Oxygen, Chlorine, boron, Lithium, Neon, Helium, Carbon, Magnesium, and Hydrogen
i know its a lot, but please i need the help. Thanks! =)
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lewis dot structures only deal with the valence (outermost) electrons, or the s and p levels (if you've learned about that in chemistry). so, you can assume that the outermost orbital for the s-block is the s orbital, and the outermost orbital for the p-block is the p orbital. so... as for any of those elements that you named... if they are in group 1, they only have one dot (potassium and the elements that are above and below it). if they are in group 2, they have two dots (calcium and the elements that are above and below it). all the other elements after that would have two dots. this is because as you go from left to right in the table, you add one valence electron. that is because in an element, there are going to be equal numbers of protons and electrons to make the charge neutral. so, if you add one proton, you will have to add one electron. it's the difference in sodium and magnesium... one electron and one proton. so if you start in the p-block, boron would have the two s dots on the right side, and it would have one additional dot. carbon would have one more dot than boron, nitrogen would have one more dot than carbon. and then, when you get to the noble gases (group 18), you should have an octet of electrons- that means eight electrons in the outer energy level, which means eight dots. so if you ever see a lewis dot structure with eight dots, you know that it's a noble gas. if you even see one with seven dots, then you know that it's a halogen... with one dot, alkali metal, and with two dots, alkaline-earth metal. i don't want to give you the specific answers to your lewis dot structure questions because we're not supposed to give homework answers, but i really hope that this helped :)
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what you do for a lewis dot structure is you have to make the outer energy level full. so say it has 5 valence electrons, you would make its symbol lets say its Al (idk if it has 5 valence electrons) but to make it full, you need 3 electrons so you make three dots around the letters Al . you will put one on top one on the side and one on the bottom, if it needed more you wud keep going around the circle.
,x hope thats clear enough! :]
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Hope I helped! Good luck!
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