Unit Test: Astronomy Mid-Unit Test - Part 1

During which phase of the moon is it possible to experience a solar eclipse?

full moon
first quarter moon
new moon
third quarter moon

Which other elements contain the same number of outer electrons as sodium

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Find the number of moles of argon in 364g of argon.