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Pekka Pyykkö

Veli Pekka Pyykkö is a Finnish academic. He was professor of Chemistry at the University of Helsinki. From 2009–2012, he was the chairman of the International Academy of Quantum Molecular Science. He is known for his extension to the periodic table of elements, known as the Pyykkö model.

Pyykkö model
After the 118 elements now known, Pekka Pyykkö predicts that the orbital shells will fill up in this order: • 8s, • 5g, • the first two spaces of 8p, • 6f, • 7d, • 9s, • the first two spaces of 9p, • the rest of 8p. The compact version: ==References==
Source: Wikipedia ↗
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