The Biology Project: Biochemistry

Chemistry Tutorial

Problem 13: Isotopes

Two isotopes of an element have the same number of protons and electrons, but differ in the number of neutrons. The chemical properties of two isotopes are nearly identical. This observation is consistant with the concept:

B. The electrons determine the chemical properties on an element
Correct.
The electrons are present on the surface of an atom, and are involved in chemical reactions.

Problem 13 Problem 14

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