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Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?

How many neutrons does an element have if its atomic number is 50 and its mass number is 166