Multiple Choice
How many neutrons are present in an isotope of selenium-83?
34
views
2. Atoms & Elements
Isotopes
Back2. Atoms & Elements
Isotopes
- Multiple ChoiceArsenic has an atomic number of 33 and its most common isotope has a mass number of 75. How many neutrons are present in this isotope of arsenic?8views
- Multiple ChoiceWhich of the following best describes the difference in atomic structure between carbon-12 and carbon-14?37views
- Multiple ChoiceHow many neutrons does a nitrogen atom typically have if its atomic number is 7 and its most common isotope has a mass number of 14?222views
- Multiple ChoiceWhich of the following correctly describes how to calculate the number of neutrons (n) in an atom?26views
- Multiple ChoiceHow many protons and neutrons are present in an atom of magnesium-25?44views
- Multiple ChoiceBoron occurs naturally as two isotopes. What is the primary difference between these isotopes?16views
- Multiple ChoiceWhich of the following is an example of a radioactive isotope?27views
- Multiple ChoiceWhich of the following best explains why carbon-14 is the most common isotope used for radiometric dating of once-living materials?33views
- Multiple ChoiceAn atom with an atomic number of 12 and a mass number of 25 can best be described by which of these?182views
- Multiple ChoiceHow many neutrons are present in the isotope lithium-6?31views
- Multiple ChoiceAn atom has an atomic number of 6 and a mass number of 14. How many neutrons does this atom have?42views
- Multiple ChoiceWhen an atom loses a neutron, which of the following best describes the result?32views
- Multiple ChoiceCopper has two naturally occurring isotopes: copper-63 and copper-65. How many neutrons are present in an atom of copper-65?30views
- Multiple ChoiceWhat is the mass number of an atom of potassium that has 20 neutrons?240views