Periodic Table Overview

Groups

Because they have the same number of electrons in the outer energy levels (valence electrons).

Periods

<p>The closest available shell to the nucleus.</p> Signup and view all the answers

<p>By using electron configurations.</p> Signup and view all the answers

<p>Atoms of elements in the same group have the same number of electrons in the outer energy levels (valence electrons), leading to similar chemical behavior.</p> Signup and view all the answers

<p>Atomic numbers and atomic masses increase as you move from left to right in a period.</p> Signup and view all the answers

<p>Only a certain number of electrons are allowed in each shell to ensure stability and prevent overcrowding in the atom.</p> Signup and view all the answers

<p>The filling of energy levels in an atom follows a pattern where each subsequent electron shell is filled only after the previous shell is full.</p> Signup and view all the answers

<p>An example of electron distribution in sulfur (S) is 2, 8, 6, where each number represents the electrons in the respective energy level.</p> Signup and view all the answers

<p>All atoms of the elements in the same period have the same number of energy levels or shells, but the number of electrons in the outermost shell may vary.</p> Signup and view all the answers