In isotopic notation, the mass number of the isotope is written as a superscript in front of the chemical symbol for that element. In hyphen notation, the mass number is written after the name of the element. Show For example, in isotopic notation, the isotope of carbon that has a mass number of twelve would be represented as #"^12C#. In hyphen notation, it would be written as carbon-12. Key Questions
What is the hyphen notation for the isotope with 15 electrons and 15 neutrons?The mass number will be 30 because the mass number is the sum of the atomic number and the number of neutrons. Therefore, the isotope in hyphen notation is Phosphorus-30.
How can you represent the isotopes using hyphen notation and nuclear symbol?Nuclear Notation
Note: in hyphen notation, the number after the hyphen is the mass number (protons + neutrons). For the Periodic Table, the Atomic Number is on top and the average atomic mass is on the bottom. For nuclear notation, the mass number of the isotope goes on top and the atomic number goes on the bottom.
|