What does #"X"# represent in the following symbol: #""_35^80"X"# ?
2 Answers
Aug 27, 2016
Do you mean
Explanation:
X shows the name of the element in the periodic table
Sep 4, 2016
For
#bb(""_(Z)^(A) X^(pmn))#
#Z# is the atomic number, which tells you the number of protons in the element and also its identity.#A# is the mass number, which tells you the number of protons plus the number of neutrons.#X# is the chemical symbol of the element, and it must correspond to the atomic number.#pmn# is the signed charge.
So, with an atomic number of