at the same place, reffers to the location on the same place of the periodic table. Having the same number of proton, they also have the same number of electrons, what makes their chemical properties almost identical. |
at the same place, refers to the location on the same place of the periodic table. Having the same number of protons, they also have the same number of electrons, which makes their chemical properties almost identical. |
Different isotopes of an element are created on stars, |
Different isotopes of an element are created in stars, |