Multiple Choice
Which neutral atom has 5 valence electrons and 7 neutrons?
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2. Atoms & Elements
Isotopes
Back2. Atoms & Elements
Isotopes
- Multiple ChoiceHow many neutrons are present in the isotope germanium-75?26views
- Multiple ChoiceHow does one isotope of a particular element differ from another isotope of the same element?29views
- Multiple ChoiceWhich of the following statements best describes an isotope?51views
- Multiple ChoiceGallium has two naturally occurring isotopes, 69Ga and 71Ga. If the atomic mass of gallium is 69.72 amu, which isotope is more abundant?28views
- Multiple ChoiceA sample of chlorine contains two naturally occurring isotopes: chlorine-35 (mass = 34.969 u, abundance = 75.78%) and chlorine-37 (mass = 36.966 u, abundance = 24.22%). What is the average atomic mass of chlorine?27views
- Multiple ChoiceZinc has an atomic number of 30. How many neutrons are present in the most abundant isotope of zinc, Zn-64?53views
- Multiple ChoiceCan the atomic mass of an element vary, and if so, what is the reason for this variation?32views
- Multiple ChoiceWhich noble gas isotope has exactly 48 neutrons?23views
- Multiple ChoiceAn isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope?44views
- Multiple ChoiceIf the haploid number of sphagnum moss is 19, what is its diploid number?141views
- Multiple ChoiceA nuclide is represented as 14C. How many protons and neutrons does this nuclide contain, and what is the element?26views
- Multiple ChoiceWhich of the following best explains how boron-10 and boron-11 differ?35views
- Multiple ChoiceTwo atoms that are isotopes of one another must have the same number of which subatomic particle?25views
- Multiple ChoiceWhich isotope of iron has 30 neutrons?32views