Isotopes RAM Balancing Nuclear Equations 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 The number of electrons in an atom Mass number or number of protons and electrons Mass number or number of protons and neutrons If the relative atomic mass of Br is 78.9183 what is its mass number 78.9183 78 79 79.9183 80 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 78.91 u 79.90 u 80.00 u The number of neutrons in Pu-238 is 238 145 94 144 A beta particle is a/an An ion with a negative charge Electron Proton Positron An alpha particle is a/an Electron Proton Helium atom Helium with a 2+ charge 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 electrons Elements that have the same number of protons and neutrons Elements that have the same number of neutrons Elements that have the same number of neutrons but different 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 The number of neutrons in U-239 is 92 145 239 147 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 = 18 Electrons = 9 Protons = 9 Neutrons = 9 Electrons = 10 Protons = 9 Neutrons = 9 Electrons = 7 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 The letter ‘A ‘represents while using notations to write elements to represent the number of protons, neutrons and electrons is/are The number of electrons in an ion Mass number or number of protons and neutrons Atomic Number or number of protons Mass number or number of protons and electrons Loading … Question 1 of 12 Share this:TweetWhatsAppLike this:Like Loading...
