11 Trends in the Periodic Table SAQ1

Half the distance between the nuclei of two atoms of the element joined together by a single covalent bond.

Increased nuclear charge and the same screening effect.

Extra energy levels, increased screening, and these offsetting an increase in nuclear charge.

<p>Increase in nuclear charge and smaller atomic radius.</p> Signup and view all the answers

<p>Increase in atomic radius, increased screening effect, and these being more important than an increased nuclear charge.</p> Signup and view all the answers

<p>The minimum amount of energy required to remove the most loosely bound electron from 1 mole of gaseous atoms in their ground state.</p> Signup and view all the answers

<p>Increased nuclear charge and decreased atomic radius.</p> Signup and view all the answers

<p>Increased atomic radius and increased screening.</p> Signup and view all the answers

<p>The 2nd ionisation energy of an element is the minimum amount of energy required to remove the most loosely bound electron from each singly charged positive ion in a mole of these ions.</p> Signup and view all the answers

<p>The increase in atomic radius reduces the electronegativity, making it less attractive to electrons.</p> Signup and view all the answers

<p>As the atomic radius decreases across a period, the 1st ionisation energy increases.</p> Signup and view all the answers

<p>The increase in nuclear charge increases the electronegativity, making it more attractive to electrons.</p> Signup and view all the answers