I believe it is "There are low energy orbitals which have not been filled to hold the maximum number of electrons" because it went from 2p5 to 3s2 and it was supposed to go from 2p6 to 3s2.
I hope this helps
True:
They are Nobel gassed! They are un-reactive because there outer shell (valence) is completely full. This means they do not want to lose or gain on electron so they do not react.
The scale will read <u>112 grams.</u>
Why?
Since we already know the percent error of the scale (12%) and we also know the mass of the block that is placed on the scale, we can calculate what will be the read of the scale by using the following formula:

We can see that the scale will read 112 grams.
Let's verify that we are right by using the following formula to verify if the obtained value for the scale read will be 12%:

Hence, we can see that the scale will read <u>112 grams.</u>
Have a nice day!
It will be B... I hope so. If i am wrong let me know