Hi and thank you for your question. Do remember that the atomic number is the number of protons (or positive charges) in a nucleus. It was a discovery made by Henry G J Moseley. Moseley found that certain lines in the X-ray spectrum moved each time he was using a new...
A mass number is a total count of all the protons and neutrons in the nucleus of an atom. Protons are the positively charged particles in the nucleus while the neutrons have a neutral charge. Each particle has a mass count of one. ...
the difference is the number of protons found in the nucleus of the atoms. the number of protons makes each element unique, so they are organized by these numbers on the periodic table. the number of protons that are found in an atom of an element is called the atomic number. on the ...
The atomic number of an element is defined as the number of protons in the nucleus of one atom of that element. This element is represented by the chemical symbol Xe. Xenon is found naturally occurring in the atmosphere, but only in very small amounts (i.e., less than 0.00001% of the...
Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number written to the right of the element's name is the mass number. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element...
of an atom represents it. It represents the number of protons that an electron in the element effectively ‘sees’ due to screening by the inner-shell electrons. Generally, the EAN of the central metal is numerically equal to the atomic number of the noble gas element found in the same ...
Atomic number Z represents the number of protons per atom. Mass number Z + N is equal to the number of protons Z plus the number of neutrons N present in the nuclei. Mass numbers of the most abundant isotopes are given in order of decreasing abundance. For example, Cadmium Cd-48 mass ...
The atomic number of an element is equal to the total number of protons in the nucleus of the atoms of that element. The atomic number can provide insight into the electronic configuration of the element. For example, carbon has an electron configuration of [He] 2s22p2, since its atomic ...
The mass number of lithium is 7. The mass number of any element is equal to its number of protons and neutrons. You can figure out the number of... Learn more about this topic: Atomic & Mass Number | Overview & Difference from
The atomic number for scandium is 21. Its atomic mass is 44.956. The atomic number refers to the number of protons in its atom's nucleus, and the... Learn more about this topic: Scandium Overview, Properties & Uses from Chapter 3/ Lesson 8 ...