Representation of Isotopes
Posted: Sat Aug 15, 2026 1:27 pm
\(\dfrac{A}{Z}E\)
\(\dfrac{13}{6}C\)
where:
A = Mass Number: Number of Protons + Neutrons
Z = Atomic Number: Number of Protons
E = The Element
What are the representations of 12 Carbon (most common, on periodic table) and 13 Carbon? How many neutrons do they have, respectively?
\(\dfrac{12}{6}C\)
\(\dfrac{13}{6}C\)
The first one has 6 neutrons because A - Z = 12 - 6 = 12
The second one has 7 neutrons because A - Z = 13 - 6 = 7