At pressure p atmospheres, a certain fraction f of a gas decomposes. the quantities p and f are related by the equation 4f 2p 1 − f 2 = k, where k is a positive constant. (a) find df dp . (b) show that df dp < 0 always. then, interpret/explain what this means in physical terms.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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