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