This means that neutral zinc atom has a total of 30 electrons surrounding its nucleus. To see how many of these electrons are valence electrons, write the electron configuration of a neutral zinc atom. Notice that the outermost shell, which for zinc is the fourth shell, n=4, has two electrons. Hope this helps. :)
I would say that children need adults to be responsible leaders. For example, my son has a developmental disability which means things must be done just so for him to feel comfortable. Yesterday, we wanted to meet up with my wife who was at the beach. He goes with me on the weekend to help him with his errands etc. So we went to her sports brella but she was swimming. So he wanted to go to the usual place he gets his fish and chips at another nearby place and also where he usually swims. So we left and went to that place. Then my wife called that where were we? So i said we will be back. So finally, once he got his food, I drove us back to meet my wife (instead of having him swim in his usual place). I was I believe using leadership so we could be together as a family and taking the chance that he would be okay with swimming at the other beach, and it worked out.
2n² rule:
This rule is used to determine number of electrons in particular shell.
n=1 means K shell
n=2 means L shell
n=3 means M shell
n=4means N shell
The first K shell can hold upto 2 electrons, L shell can hold up to 8, third M shell can hold up to 18and the fourth N shell can hold upto 32 electrons. This rule of arrangement of electrons according to the shell is known 2n2 rule where n means number of shell.
For example: There is one proton in the nucleus of hydrogen atom, which moves in K shell path. It has no neutron.
A) polyester, hope it was quick enough
Hey there,
I would conclude that your correct answer would be "physical". When the nitrogen gas get's very cold, this would be considered a physical change. The are properties that have physical properties.
Hope this helps.
~Jurgen
