<span>.. .. ..
[h-o-o:]- <--> [h-o=o:]-
.. .. .. ..
There is an overall negative charge for the ion due to the additional unbonded electron on the second oxygen atom. The electrons, although not favored, can form an oxygen-oxygen double bond, as a resonance structure.</span>
N=1 shell contains 2 electrons.
n=2 shell contains 5 electrons.
n=2 is the outermost shell. Therefore there were 5 electrons before sharing.
6 electrons are being shared between 2 nitrogen atoms.
Pair of electrons form a covalent bond. Therefore 3 pair of electrons will form 3 bonds.
1.00mol is the correct answer
I believe the correct answer from the choices listed above is the last option. You can separate the mixture of <span> iron beads and iron filings by using a screen distillation. Since they surely have different sizes so you can easily separate by filtration. Hope this answers the question.</span>
I definitly believe the answer is c. 2