Answer:
Balanced equation have equal number of atoms of different elements in the side of reactants and products.
With the principle quantum number being 2, the maximum number that can share this is 8. You can use the general formula 2n^2 to calculate this number (n=quantum level), or you can use the concept of quantum numbers (n, l, m, s) to justify this answer.
<span>Of all the sub-shells shown ( 1s ,2s ,2p ,3s ,3p ,4s ,3d ,4p ,5s ,4d ,5p ,6s ,4f ,5d) the ones that act as core orbital of HF (Hydrogen Fluoride) is 6s and 5d</span>
Answer:
Explanation:
The modern model recognizes particles in the atom, whereas Dalton's model does not.
The only one example of a chemical change would be:
B. Leaving cheese out to get moldy.
Because there is a chemical reaction.