Multiple Choice
Which of the following elements has atoms with the greatest average number of neutrons?
2. Atoms & Elements
Isotopes
Back2. Atoms & Elements
Isotopes
- Multiple ChoiceMagnesium has three naturally occurring isotopes: 24Mg, 25Mg, and 26Mg. If the atomic mass of magnesium is 24.305 u and the masses of the isotopes are 23.985 u (24Mg), 24.986 u (25Mg), and 25.983 u (26Mg), what is the fractional abundance of 24Mg if the abundances of 25Mg and 26Mg are 0.10 and 0.11, respectively?
- Multiple ChoiceWhat are the atomic number and mass number for the carbon isotope with seven neutrons?1views
- Multiple ChoiceWhich property distinguishes isotopes of the same element from each other?
- Multiple ChoiceWhich of the following are the stable isotopes of nitrogen?
- Multiple ChoiceHow do the isotopes of an element differ from each other?
- Multiple ChoiceWhich of the following isotopes has the same number of neutrons as nitrogen-15 (N-15)?
- Multiple ChoiceHow many protons does the isotope lithium-8 have?
- Multiple ChoiceWhich of the following is the number of neutrons in the most abundant isotope of tungsten (W)?
- Multiple ChoiceWhich of the following is the correct nuclear symbol for the isotope of beryllium with mass number a = 10?
- Multiple ChoiceHow many neutrons are present in an atom of silicon-30?
- Open Question
How many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?
1views - Multiple ChoiceAn element has two isotopes, X and Y, with mass numbers of 52.0 and 53.0 respectively. The relative atomic mass is 52.2. What is the percentage abundance of isotope X?
- Multiple ChoiceWhich of the following isotopes is not possible?
- Multiple ChoiceWhich of the following best describes how radioactive isotopes differ from stable isotopes?