82. How many moles of calcium are in 3.82g of calcium?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block