The periodic table is organized by A)
atomie mass:
B)
atomic size,
C)
atomic number
D)
atomic periodicity

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.