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Protons and neutrons have an assumed mass of 1, so the combined number of protons and neutrons in the nucleus equals the atom's mass number. To determine ...


Determine the number of protons, electrons, and neutrons for each isotope described below. 31. An isotope has atomic number 19 and mass number 39. 32.


What is the atomic number of nickel? A) 28. B) 10. C) 59. D) 58. 2. How many protons does calcium have? A) 40.1. B) 20. C) 20.1. D) 12. 3. How many neutrons  ...


Neutron b. Electron c. Proton d. Isotope e. Nucleus. 4. The atomic mass ... Protons d. Electrons and neutrons c. Protons and neutrons e. Neutrons. 10. ... If you discovered a min...


Apr 11, 2020 ... Take our interesting atom quiz and see how much you know about important parts of the atom such as the electron, proton, neutron and nucleus.


d) An atom of sodium has 11 protons, 12 electrons, and 12 neutrons. Question 2. An atom of phosphorus has an atomic number of 15 and a mass number of 31.


Find Krypton on your periodic table. Answer the following questions. 5. Number of protons: ______. 6. Number of electrons: ______. 7. Number of neutrons: ...


Know what the periodic table is; Differentiate between protons, neutrons and electrons; Define nucleus and isotopes; Understand how to calculate the atomic ...


Jan 1, 2018 ... Find the numbers of protons, neutrons, or electrons in the specified elements.


(a) proton: (b) neutron: (c) anion: (d) electron: (e) atom. 2. ... of protons. (c) it is impossible to determine accurately both the position and momentum of an electron ...