<p>The graph of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML" class="wrs_chemistry"><msub><mi>IE</mi><mn>1</mn></msub><mo>&#160;</mo><mi>or</mi><mo>&#160;</mo><msub><mo>&#8710;</mo><mi mathvariant="normal">i</mi></msub><msubsup><mi mathvariant="normal">H</mi><mn>1</mn><mi mathvariant="normal">&#920;</mi></msubsup></math>&nbsp;versus atomic number (Z) is given below:</p>

<p><img alt="" src="https://school.achievam.com/upload/questionbank/question/que_1756693703.PNG" style="height:150px; width:257px" /></p>

<p>Which of the following statements is correct?</p>