A thin sheet of gold is called “gold leaf.” If a 200.- mg piece of gold is hammered into a rectangular
sheet with dimension 2.4 ft × 1.0 ft, what is the
average thickness of the sheet in meters? The
density of gold is 19.32 g/cm3

. (1 inch = 2.54 cm)

the answer is a. co2, this would be colder than the : )

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

idk what is it? is this a question that you know the answer or u dont