Diatomic molecules will be Nonpolar when they are composed of only one element.
The correct option is 58 Fe 2+.
A neutral atom normally has the same number of proton, neutron and electrons, if the number of electrons differ from that of proton, that means that the elements has given some electrons away or it has gained some electrons from another element.
In the question given above, the atomic number of the element is 26 [because the proton number is 26], which means the element is iron. Iron has 24 electrons because it has given two away, so it will have +2. The iron has 32 neutrons instead of 26 so it is an isotope.
In the modern periodic table the elements are arranged in order of increasing atomic number.
Because subatomic particles ARE what make up atoms.
Assume there is 100g of the substance at first
