What is the isotope of neon that contains 11 neutrons?
To find the isotope of neon that contains 11 neutrons, we need to know the atomic number of neon. The atomic number represents the number of protons in the nucleus of an atom.
The atomic number of neon is 10, which means it has 10 protons. Since neutrons are not included in the atomic number, we need to find the isotope that has 11 neutrons.
To determine the number of neutrons in an isotope, subtract the atomic number from the mass number. The mass number represents the total number of protons and neutrons in an atom.
The most common isotope of neon, which has 10 neutrons, is neon-20 (written as 20Ne). To find an isotope with 11 neutrons, we need to evaluate higher mass numbers.
By using the given information, we can calculate the mass number of the desired isotope. Adding 10 protons and 11 neutrons gives us a mass number of 21.
Therefore, the isotope of neon that contains 11 neutrons is neon-21 (written as 21Ne).