Isotopes RAM Balancing Nuclear Equations A beta particle is a/an Electron Positron An ion with a negative charge Proton 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 An alpha particle is a/an Proton Helium with a 2+ charge Helium atom Electron Determine the number of protons, neutrons, and electrons in the following isotopes: atomic number 9, mass number 18, charge of 1− Protons = 9 Neutrons = 18 Electrons = 9 Protons = 9 Neutrons = 9 Electrons = 9 Protons = 9 Neutrons = 9 Electrons = 10 Protons = 9 Neutrons = 9 Electrons = 7 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 electrons The number of electrons in an ion Atomic Number or number of protons Mass number or number of protons and neutrons The number of neutrons in U-239 is 92 239 147 145 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 neutrons Mass number or number of protons and electrons The number of electrons in an atom Atomic Number or number of protons Isotopes of an element Not possible to predict Show the same physical property Show the same chemical property Shows both the same physical and chemical properties 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. 78.34 u 80.00 u 78.91 u 79.90 u The number of neutrons in Pu-238 is 145 144 238 94 If the relative atomic mass of Br is 78.9183 what is its mass number 79.9183 78.9183 80 79 78 Which among the following choices best describes an isotope? Elements that have the same number of protons but different number of neutrons Elements that have the same number of neutrons but different number of protons Elements that have the same number of neutrons Elements that have the same number of protons and neutrons Elements that have the same number of electrons Loading … Question 1 of 12 Share this:TweetWhatsAppLike this:Like Loading...