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4. What is an isotope? a. An element with equal number of protons and neutronsb. An elements with differing numbers of protons and electronsc. An element with differing number of protons and neutronsd. An element with equal number of protons and electrons5. Compared to the charge and mass of a proton, an electron hasa. the same charge and a smaller mass.b. the same charge and the same mass.c. opposite charge and smaller mass.d. opposite charge and the same mass. 6. A proton has approximately the same mass as .a. a neutronb. a beta particlec. an alpha particled. an electron |
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