<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Periodic trends - Page 6 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=Periodic_trends&amp;p=5">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Periodic_trends&amp;p=7">3.Next</a>
</p>
<p>right, which in turn increases the <a href="page.php?w=effective_nuclear_charge">effective nuclear charge</a>. The increase in attractive forces reduces the atomic radius of <a href="page.php?w=Chemical_element">elements</a>. When we move down the group, the atomic radius increases due to the addition of a new shell.</p>

<p><big> Nuclear charge and effective nuclear charge </big></p>
<p><a href="page.php?w=Nuclear_charge">Nuclear charge</a> is defined as the number of <a href="page.php?w=Proton">protons</a> in the <a href="page.php?w=Atomic_nucleus">nucleus</a></p><p>
<a accesskey="1" href="page.php?w=Periodic_trends&amp;p=5">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Periodic_trends&amp;p=7">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
