The charge on the atom containing `17` protons, `18` neutrons and `18` electrons is.

The charge on the atom containing 8 protons, 9 neutrons and 9 electrons is

What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons ?

What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons ?

An atom contains protons, neutrons and ______

An atom of X contains 17 protons ad 18 neutrons. Identify X.