Practice Neutron in Chemistry
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A neutral subatomic particle found in the nucleus of an atom that has no electric charge but contributes to the atom's mass.
The glue that helps hold the nucleus together without adding charge.
Example 1
easyAn atom of sodium has a mass number of 23 and an atomic number of 11. How many neutrons does it contain?
Example 2
mediumExplain why neutrons are important for nuclear stability. Why do heavier elements tend to have more neutrons than protons?
Example 3
easyCalculate the number of neutrons in {}^{56}_{26}\text{Fe}.
Example 4
mediumTwo atoms each have 17 protons. One has 18 neutrons and the other has 20 neutrons. Are they different elements or isotopes?