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How many empty spaces are there for electrons on the outer ring of sodium?
This may be trick question.In practise to make up the octet which would give sodium the electronic configutration of Argon, there is ony space for 7.However the electronic confugration of sodium is [Ne]3s1The outer shell, 3, has the following orbitals.3s, three p orbtals 3px, 3py, 3pz AND five d orbitals , and 3dx2, 3dxy, 3dyz, 3dzx, 3dx2-y2 (sorry the sufixes don't come out right- you need to look at a text book)Theoretically then we have space for 18 electrons in the outershell, so sodium could take on 17!
How many sub-levels in the third energy level?
The range of the levels is between 0 to n-1. 3 minus 1 equals to 2, so we have 0, 1, 2 as sub levels. They are the same number of sub-levels.
Find an electron dot diagram for nA2O?
i think it's meant to be NO4 3- .. an ion because it's NO2 - and NO3 2- but then i don't know how they're actually bonded! i guess there's deffo one dative bond between N and O and then either 3 dot cross ones ..or another dative from n to o and one from an o to n and one dot cross! but i expect it's three dot crosses and one dative! because it's more even.. probs. guut luck anyway :D i think it's meant to be NO4 3- .. an ion because it's NO2 - and NO3 2- but then i don't know how they're actually bonded! i guess there's deffo one dative bond between N and O and then either 3 dot cross ones ..or another dative from n to o and one from an o to n and one dot cross! but i expect it's three dot crosses and one dative! because it's more even.. probs. guut luck anyway :D
