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Manne Siegbahn

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Manne Siegbahn was a famous scientist from Sweden. He studied how atoms work. He was born in 1886 in a place called Örebro.

Manne studied at Lund University. He worked with a man named Johannes Rydberg. Later, Manne became a professor at Uppsala University. He also worked at the Royal Swedish Academy of Sciences.

Manne was an expert in X-ray spectroscopy. This is a way to study atoms using X-rays. He built new tools for his work. These tools helped him take very exact measurements. He looked at the light that atoms give off. This helped him understand the electron shell. The electron shell is a part of an atom. He also made a new way to name things. We call this the Siegbahn notation.

His great work won him the Nobel Prize in Physics in 1924. He won other prizes too. One was the Hughes Medal in 1934. His son, Kai, was also a scientist. Kai won a Nobel Prize in 1981. The Siegbahn name is still important in science today.

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