Answer:
26.981539 u
Explanation:
One mole of Al atoms has a mass in grams that is numerically equivalent to the atomic mass of aluminum. The periodic table shows that the atomic mass (rounded to two decimal points) of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g.
Answer:
The electrons in an atom move around the nucleus in regions known as electron shells.
Atomic radius increases down a group
Answer:
The answer would be B, The temperature of the water increases because the average kinetic energy of the water molecules increases.
Explanation:
When a cold front occurs from a cold air mass moving into a warm air mass, the warm air is forced upward. When warm air rises, it cools, and since cool air can't hold as much moisture as warm air, the water in the air gets forced out, which is what creates clouds.
