In order to be stable, most elements, require to complete an octet in their outermost shell. Hence, they must either or electrons to / from other elements.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d