Periodic Trends

Specific patterns in the periodic table that illustrate different aspects of certain elements when grouped by period and/or group.

Dmitri Mendeleev

Atomic radius, ionization energy, electron affinity, electronegativity, valency, and metallic character.

<p>Because of the similar electron configurations of the elements within their respective groups or periods.</p> Signup and view all the answers

<p>The distance from the atomic nucleus to the outermost electron orbital in an atom.</p> Signup and view all the answers

<p>The major periodic trends are atomic radius, ionization energy, electron affinity, electronegativity, valency, and metallic character. These trends exist because of the similar electron configurations of the elements within their respective groups or periods.</p> Signup and view all the answers

<p>Atomic radius decreases as we move from left to right in a period and increases as we go down a group.</p> Signup and view all the answers

<p>Atomic radius is the distance from the atomic nucleus to the outermost electron orbital in an atom.</p> Signup and view all the answers

<p>Atomic radius decreases across a period because the effective nuclear charge increases, pulling the electrons closer to the nucleus.</p> Signup and view all the answers

<p>Atomic radius increases down a group because there are more energy levels or shells, resulting in a larger atomic size.</p> Signup and view all the answers