Which of the following most affects the placement of an element in the periodic table?
a.
the element's importance to human life
b.
the amount of the element on earth
c.
the properties of the element
d.
the order in which the element was discovered

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.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Ascientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon dioxide, oxygen, and nitrogen. which term most likely describes what she is measuring?