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Pre-AP Biology Chapter 2 Test Chemistry of Life sevenfold Choice (1 point each) find the choice that best completes the controversy or answers the question. ____b1.The space meet the nucleus of an subatomic particle contains |a. |protons. |c. |neutrons. | |b. |electrons. |d. |ions. | ____c2.If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number would be |a. |3. |c. |7. | |b. |4. |d. |11. | c____3.Isotopes are atoms of the selfsame(prenominal) element with the same number of protons and |a. |a antithetic number of |c. |a distinguishable number of neutrons.| | |electrons. | | | |b. |a different number of |d. |the same number of neutrons. | | |molecules.

| | | ___d_4.Which of the following is a purpose of radioactive isotopes? |a. |can encounter the ages of rocks and fossils | |b. |can be use to treat cancer and extinguish bacteria that cause pabulum | | |to spoil | |c. |can be...If you involve to get a beneficial essay, order it on our webs ite: OrderCustomPaper.com

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