Homework Answers
Protons = 31
Element having 31 protons is: Gallium (Ga)
Mass number (x) = No. of protons + No. of neutrons = 31 + 39 = 70
Ga looses 3 electrons (Ga+3) to have number of electrons = 31 - 3 = 28
So; the symbol is:
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A is atomic mass number and Z is atomic number 5. Complete the table below -remember Net #of neutrons electrons ch...
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64Chapter 7 Atomic Number and Atomie Mass The Periodie Table of Elements contains th and atomie...
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Complete the following nuclear equations. Write the mass number, atomic number, and symbol for the remaining...
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Complete the table below with element name, full atomic symbol, number of electrons, mass number, number of protons, neutrons and net charge: 8. Mass Protons Element SNumber NeutronsCharge SymbolElectrons Iodine 53 131 18 1- 78 125 Lead 28 65 35
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