In this nuclear reaction equation, oxygen decays to form nitrogen. Which equation correctly describes
this decay?
o 150 → 15N+e
o 150+,e → EN
O 150 - 15N+je
0 150 18N+90

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

Solubility would be your answer.

Sorry i dont understand the question can you rephase it?

Heat of fusion= heat/mass  heat of fusion = 12.03kj/36 g= 0.3342 kj/g or 334.2 j/g