Upadhyay, Dinesh Prakash, and Mohan Kumar Sharma. “Electronegativity, Hardness and Atomic Number: Mutual Relationships Explored via Novel Isoelectronic Series Methodology”. JOURNAL OF ADVANCES IN CHEMISTRY 11, no. 5 (April 18, 2015): 3583–3596. Accessed November 23, 2024. https://rajpub.com/index.php/jac/article/view/4477.