A particle with a charge of 7 x 10-6 C is separated from another particle at a distance of .5 m. How strong is the Electric Field?

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.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

How are the terms group and period used on the periodic table