An atom of an element X contains eight protons, eight neutrons and eight electrons. Therefore, the atomic number of the element X is eight.
An atom of an element contains 29 electrons and 35 neutrons. Deduce (i) the number of protons
(ii) the electronic configuration of the element.
The atom of an element has 9 protons and 9 electrons and 10 neutrons. What is the atomic number of the element?
An element has eight electrons, eight protons and eight neutrons. Identify the element.
If an atom of an element contains 17 electrons and 18 neutrons, find the number of protons, atomic number and mass number of the element.
The atom of an element X has 18 protons, 22 neutrons and 18 electrons. The atomic number of the element is ___