Atoms, Ions and Isotopes 0.0 / 5 ? ChemistryThe Periodic TableASOCR Created by: TxxWxrd1Created on: 15-12-20 14:22 10942657318 Across 1. What describes the number of protons AND neutrons in the nucleus (4, 6) 4. What is the relative charge of a proton (8, 3) 5. What is the relative mass of a neutron (3) 6. What is the average of all isotopes masses called (8, 6, 4) 8. What are atoms with the same number of protons but different numbers of electrons (4) Down 2. What are atoms with different protons numbers (8) 3. What is the relative mass of an electron (10) 7. What is the relative charge of a neutron (7) 9. What is the relative charge of an electron (8, 3) 10. What is the relative mass of a proton (3)
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