The atomic radius is found to decrease across the periodic table from lithium to fluorine. what best
accounts for this periodic trend?
(a)increasing nuclear charge
(b) increasing shielding
(c) increasing polarity
(d)increasing electronegativity
(e) increasing electron affinity

What is the value of keq for the reaction expressed in scientific notation

What is the molar mass of potassium nitrate, kno3

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange