42 cards is after his dog ate half, so before that would be 42 * 2 = 84.
Even before that, he bought 5 new baseball cards, so add that to the 84 cards and you have 84 + 5 = 89.
Fred started out with 89 baseball cards.
When calcium forms an ion, it loses its two valence electrons and becomes a calcium ion with a 2+ charge. In that case the highest energy level occupied by the calcium ion's electrons in its ground state would be the third energy level.
<em>A</em><em> </em><em>statement of financial position, a statement of profit or loss and other comprehensive income, a statement of changes in equity and a statement of cash flows.</em><em> </em>
Many things wrong with this sentence, but it is a fragment because there is a random period in the middle.