If you face any problem in reading your tracking results and need assistance, please phone our Express Customer Service at +41 (0)848 711 711 or fill out our contact form. We apologise for any inconvenience and assure you that this issue will be solved quite soon. Please read these result table summary first:
A chemical element or element is a chemical substance consisting of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, Z).
Part of the Computing fundamentals glossary: An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutron s, in addition to the number of proton s that uniquely defines the element.The nuclei of most atom s contain neutrons as well as protons.or any element, one of the isotopes is more abundant in nature than any of the others, although often multiple isotopes of a single element are mixed. The isotope of an element is defined by the nucleon number, which is the sum of the number of protons and the number of neutrons in the atomic nucleus.