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Scientists divide the elements on the Periodic Table into metals and non-metals, with a subcategory of transition metals in between. Gasses are on the right of the periodic table, while metals are on the left.
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Who are the scientists who cuntributed to our understanding to the elements?
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How many elements have scientists identified?
Scientists have identified 118 elements, with the most recent addition being tennessine in 2016. These elements span the periodic table and have unique properties that contribute to their classification.
How did the gaps help scientists looking for undiscovered elements?
Gaps in the periodic table allowed scientists to predict the properties of undiscovered elements based on the patterns observed in existing elements. This guided the search for new elements with specific characteristics, leading to the discovery of elements like gallium, scandium, and germanium. The periodic table's structure and trends continue to assist scientists in identifying and characterizing new elements.
What do scientists use to represent how elements react in the presence of other elements?
Scientists use chemical reactions and equations to represent how elements interact in the presence of other elements. These reactions show the starting materials (reactants) and the resulting products, along with the specific ratios and conditions under which the reaction occurs. By studying these reactions, scientists can understand the behaviors and properties of different elements and compounds.
What can scientists learn from the rate at which radioactive elements decay?
fossils
