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The noble gas configuration for Sr (strontium) is [Kr]5s2
Nitrogen(IV) oxide is N2O4.
[Xe]6s25d1
the correct electronic confrigration of phosperous is 2,8,5
The noble gas configuration for Sr (strontium) is [Kr]5s2
1s1 2p2 3d3 4f1
a. [He]2s(squared) 2p(cubed)1s^2 2s^2 2p^3
The shorthand electron configuration allows all of the electrons in a noble gas preceding an element to be omitting and written by [nobel gas name]. For nitrogen, the noble gas preceding it is He. Thus, its configuration is [He]2s2 2p3.
If you want to ask questions about "which of these", then I suggest that you make sure that there is something that is following.
The noble gas configuration for Sr (strontium) is [Kr]5s2
The electronic configuration of magnesium is [Ne]3s2.
The electronic configuration for aluminum is 1s22s22p63s23p1 .
Al N is the correct formula when aluminum and nitrogen are combined together.
[Ar]3d34s2
Only 8 groups present in periodic table. Group1,2,3,4,5,7,0 Stealth 1991
NF3 is the correct formula for nitrogen trifluoride.
Nitrogen(IV) oxide is N2O4.