2006-08-23 01:39:09 · 12 answers · asked by smleffler 1 in Science & Mathematics ➔ Chemistry
O2 is slightly larger
2006-08-23 01:40:31 · answer #1 · answered by Anonymous · 1⤊ 0⤋
An N2 molecule is larger, volume-wise. Oxygen has a higher molecular weight than nitrogen, but the greater positive charge in the nucleus pulls the electron shell closer. So an O atom has diameter 60 pm and a N atom has diameter 65 pm. The N≡N covalent bond is somewhat shorter than the O=O, being 110 pm vs 121 pm, making the N2 molecule shorter but fatter than the O2. To approximate the molecular volume, I idealized each molecule as a cylinder (the bond) capped by two hemispheres (the atoms). The volume of N2 was 260000 pm^3 and the volume of O2 was 222000 pm^3. Bear in mind that O2 is heavier than N2, despite its smaller volume.
2006-08-23 01:59:53 · answer #2 · answered by DavidK93 7 · 1⤊ 0⤋
By weight, O2 is larger. By volume N2 is larger, because O2 pulls the electron cloud in tighter.
2006-08-26 13:59:00 · answer #3 · answered by science teacher 7 · 0⤊ 0⤋
An N2 molecule is larger...this is the reason for the latest craze about filling up automobile tires with nitrogen instead of air (the rationale is that the oxygen in the air diffuses out of the tires quicker than nitrogen).
The previous poster is absolutely correct. The Wikipedia reference is accurate.
2006-08-23 06:52:53 · answer #4 · answered by The ~Muffin~ Man 6 · 0⤊ 0⤋
O2 molecule.
2006-08-23 01:41:18 · answer #5 · answered by Danny B 3 · 0⤊ 0⤋
Hi. Good question. The O2 is heavier but may be more tightly bound and therefore physically smaller.
2006-08-23 01:51:30 · answer #6 · answered by Cirric 7 · 0⤊ 0⤋
O2
2006-08-23 01:46:13 · answer #7 · answered by kemchan2 4 · 0⤊ 0⤋
molecularity.., the periodic table will show you that in, valance,and everything used to judge the "Weight"..,
O2 is the winner
2006-08-23 01:45:26 · answer #8 · answered by bigbill4u 3 · 0⤊ 0⤋
o2 molecuee easy as pie here!! got it do i win a nicy shiny prize so kol!!
2006-08-23 01:41:27 · answer #9 · answered by Anonymous · 0⤊ 0⤋
So amazed that I found this topic already answered! it's like you've read my thoughts!
2016-08-23 05:06:42 · answer #10 · answered by Anonymous · 0⤊ 0⤋