multiple - choice question\nwhy do elements in a group behave similarly?\nthey have the same number of…

multiple - choice question\nwhy do elements in a group behave similarly?\nthey have the same number of valence electrons\nthey have the same number of protons\nthey have the same number of total electrons

multiple - choice question\nwhy do elements in a group behave similarly?\nthey have the same number of valence electrons\nthey have the same number of protons\nthey have the same number of total electrons

Answer

Brief Explanations:

Valence electrons are responsible for an element's chemical behavior. Elements in the same group have the same number of valence electrons, leading to similar chemical properties. The number of protons determines the element itself, and the total number of electrons varies with the element's position in the periodic - table and its charge state.

Answer:

They have the same number of valence electrons