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Joseph Priestly and Antoine Lavoisier discovered oxygen, which laid the foundation and groundwork for modern chemistry as we know it. -
Humphry Davy utilized electricity to push the bounds of science and expand the field of chemistry. His use of electricity would help find new elements and study them. -
Dmitri Mendeleev created the modern periodic table as we know it. He organized the elements and studied their properties to create an organized table that still serves us today. -
Marie Curie's work with radioactivity helped give us insight into the atom and helped us understand it more. She discovered radioactivity through radium and polonium and created the term radioactivity. -
Harry Moseley researched atomic numbers and redefined the way that we look at the periodic table. He studied the x-ray spectrum through the diffraction of crystals to link wave lengths and atomic numbers to each other. -
Glenn Seaborg's discovery opened the door to discovering new elements that had never been studied before. He discovered Plutonium and would go on to discover more radioactive elements.