How is the atomic number related to core electrons?

Core electron. Core electrons are the electrons in an atom that are not valence electrons and therefore do not participate in bonding. The number of valence electrons of an element can be determined by the periodic table group of the element. ... Core electrons are tightly bound to the nucleus. read more

The ratio from atomic number to the number of protons in an atom is1:1. The elements are categorized by the number of protons theyhave, as that is the difference between two elements. Conceptually,atomic number and proton number are the same. read more