Chemistry, 21.01.2021 23:00, jay9253

I am one of the elements. I am a metal that can form a cation. My atomic number is Z. My atomic radius is smaller than the atomic radius of the element Z-1 but is larger than the atomic radius for Z-2. Of the two elements in my group that have biological importance, I am the one with lower atomic mass. Who am I

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I am one of the elements. I am a metal that can form a cation. My atomic number is Z. My atomic radi...