Isotopes RAM Balancing Nuclear Equations A beta particle is a/an An ion with a negative charge Proton Positron Electron The number of neutrons in Pu-238 is 94 144 145 238 An alpha particle is a/an Helium atom Electron Helium with a 2+ charge Proton Determine the number of protons, neutrons, and electrons in the following isotopes: atomic number 9, mass number 18, charge of 1− Protons = 9 Neutrons = 9 Electrons = 7 Protons = 9 Neutrons = 9 Electrons = 9 Protons = 9 Neutrons = 18 Electrons = 9 Protons = 9 Neutrons = 9 Electrons = 10 The number of neutrons in U-239 is 147 239 145 92 The letter ‘A ‘represents while using notations to write elements to represent the number of protons, neutrons and electrons is/are Mass number or number of protons and neutrons The number of electrons in an ion Mass number or number of protons and electrons Atomic Number or number of protons When balancing nuclear reaction the following reasoning is used. Both the reactants and products the mass number should be same Both the reactants and products should have the same atomic number False True Which among the following choices best describes an isotope? Elements that have the same number of neutrons but different number of protons Elements that have the same number of electrons Elements that have the same number of protons but different number of neutrons Elements that have the same number of protons and neutrons Elements that have the same number of neutrons Bromine has two isotopes, Br-79 and Br-81, whose relative atomic are masses 78.9183 u and 80.9163 u and abundances are 50.69% and 49.31% Calculate the relative average atomic mass of Br based on these experimental results. 79.90 u 78.34 u 78.91 u 80.00 u Isotopes of an element Shows both the same physical and chemical properties Show the same physical property Show the same chemical property Not possible to predict If the relative atomic mass of Br is 78.9183 what is its mass number 80 79 78.9183 78 79.9183 The letter ‘Z ‘represents, while using notations to write elements to represent the number of protons, neutrons and electrons is/are Mass number or number of protons and electrons The number of electrons in an atom Atomic Number or number of protons Mass number or number of protons and neutrons Loading … Question 1 of 12 Share this:TweetWhatsAppLike this:Like Loading...