A certain atom has 10 core electrons and 5 valence electrons.Identify the element.

Question

Quizplus · Accepted Answer

The number of valence electrons for an element in group 5A (also known as group 15) is typically 5. Additionally, the number of core electrons can be determined by subtracting the number of valence electrons from the atomic number. In this case, the atomic number would be 15 (since it's in group 5A), and subtracting the 5 valence electrons leaves 10 core electrons. Therefore, the element is phosphorus (P).

A Certain Atom Has 10 Core Electrons and 5 Valence