New elements are sometimes discovered when the nuclei of smaller elements are .
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answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl