For atoms in the ground state, electrons begin filling the 3d sublevels starting with 1. sr and ending with cd 2. sc and ending with cd 3. sr and ending with cu 4. sc and ending with cu

Sc and ending in Cu

Explanation: The 3d orbital is right next to the 4s orbital. So 3d starts with Sc Scandium which is 3d¹ and moves to the right to Cu Copper which is 3d9. The d orbital shell can occupy a maximum of 10 electrons. The 3d orbital actually ends up with Zn Zinc.

answer: at room temperature (roughly 20 degrees c), you can dissolve 203.9 grams (or 200 grams) of sugar in 100 ml of water. as water temperature increases, the amount of sugar that will dissolve increases, up to about 500 grams of sugar in 100 ml water at 100 degrees c.

explanation:

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)