What is one advantage of a physical ball and stick model made with a modeling kit over a graphical ball and stick model on paper or a computer screen?

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

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

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.