Chemistry
What is a substance made from only one type of atom called?
More Questions from Chemistry
What number is also the same as proton number and the number of electrons of a neutral atom?
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What actinide was once used to power pacemaker batteries, but has since been replaced?
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Who is generally credited with discovering the electron?
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What halogen is the most reactive and combines with most elements from around the periodic table?
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All of the halogens form acids when bonded to what element?
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