Multiple ChoiceWhich of the following best describes the composition of an isotope of calcium (atomic number 20)?25views
Multiple ChoiceVanadium (V) has two naturally occurring isotopes: V-50 and V-51. How many neutrons are present in the isotope V-51?45views
Multiple ChoiceHow many neutrons does a typical magnesium atom have if its atomic number is 12 and its most common isotope has a mass number of 24?161views
Multiple ChoiceSilver has an atomic number of 47 and its most abundant isotope has a mass number of 108. How many neutrons are present in this isotope of silver?44views