Answer:
As long as the number of protons per nucleus is known, the name of the element can be determined.
Explanation:
Knowing only the number of neutrons per nucleus alone isn't enough for finding the name of the element. For example, both hydrogen-2 and helium-3 contain one neutron per nucleus. However, these hydrogen and helium are two different elements.
Similarly, the number of electrons alone isn't sufficient for finding the name of the element. For example, both sodium ions [tex]\rm Na^+[/tex] and neon atoms [tex]\rm Ne[/tex] contain 10 electrons per particle. However, sodium and neon are different elements.
Once the number of protons in an atom or ion is known, simply look up that number on the periodic table of elements. There's one-to-one correlation between the number of protons and the name of the element. For example, if an atom contains 2 protons, its atomic number on the periodic table would also be 2. That corresponds to the element helium.
