Question

What is the mass number of an atom that contains 7 protons 11 neutrons and 7 electrons?What is the sumbol for the element?

Answer 1

`(18)/(9) F` The closest answer to your question would be Fluorine (F), no atom has 7 protons and 11 electrons.

Step-by-step explanation:

The atomic number is the number of protons (Z)

The mass number is the number of protons + the number of neutrons (A)

The atomic symbol identifies the element (X)

`(A)/(Z)X`