Editing Answers To Review HW For CP Level 2 Chem On Atomic Structure
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1. Atoms of the same element but different by mass (number of neutrons).<br> Carbon-12, C-12 or <sup>12</sup><sub>6</sub>C.<br> <br> 2. #neutrons = Mass number - Atomic number or also can write in symbols, #n = A - Z<br> <br> 3. Atomic number (Z)<br> <br> 4. The "mass" of the "Element". " " indicates that it does not really exist.<br> <br> 5. For the following #p - number of protons, #e - number of electrons, #n = number of neutrons.<Br> a. Ca - 42, 20p, 20e, 22n<br> b. C - 13, 6p, 6e, 7n<br> c. U - 238, 92p, 92e, 146n<br> <br> 6. See Isotope Information Table for actual Atomic masses (last column)<br> <br>
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