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Draw the electron configuration for a period 2 atom from each of the following families of the periodic table: Family 1,2,13,14,15,16,17,18

2007-03-25 14:01:15 · 3 answers · asked by sakhi93 4 in Education & Reference Homework Help

3 answers

there are either 1, 2, or 3 circles outside the nucleus. the first circle holds 2 electrons, the second circle holds 8, and the last holds either 8 again or 18 iirc. starting with the innermost circle, start filling them up with electrons.

2007-03-25 14:13:45 · answer #1 · answered by Idolfanatic 3 · 0 0

You are asking for the electron configuration for the elements in period 2. These are lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.

Now, being in period 2 each of these elements have two energy levels. In the first energy level for each element there are two electrons. In the second energy level there is 1 electron in lithium, two in beryllium, three in boron and . . . well, do you get the pattern?

That’s it. It’s that easy.

How about going to the third period? Guess what? Each element in that period, reading horizontally across the table each element has three energy levels. In the first there are two electrons, in the second there are eight electrons and in the third, starting with sodium there is one electron, in magnesium there are two electrons and son on until you get to argon, which has eight electrons.

Now, when you get to the forth period and beyond it gets a little more complicated but there you have the first 18 elements!

2007-03-25 21:19:29 · answer #2 · answered by doesmagic 4 · 0 0

this is grade 8 stuff?! and i thought grade 8 ib science was hard enough!

2007-03-25 21:14:54 · answer #3 · answered by aznboardergirl 3 · 0 0

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