you discover that an atom of an unknown element had 54 protons. identify the element and explain how you know the identity is correct. explain whether the unknown element is more or less reactive than an atom of an element that has 30 protons. identify an element that would have very similar chemical properties (as element 54) to the unknown element and explain why its chemical properties would be similar.
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you discover that an atom of an unknown element had 54 protons. identify the element and explain how...
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