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