How many protons are in an element with an atomic number of 8 and a mass of 18? a: 3 b: 8 c: 10 d: 18

Classify each statement about effective nuclear charge, zeff, as true or false.

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

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.