Answer:
Au
Explanation:
the atomic radius of iron (Fe) is 126 pm while the atomic raduis of gold (Au) is 166 pm.
How to find atomic radius —Divide the distance between the nuclei of the atoms by two if the bond is covalent. For example, if you know the distance between the nuclei of two covalently bonded atoms is 100 picometers (pm), the radius of each individual atom is 50 pm.
read more here: https://sciencing(.)com/calculate-radius-atom-7817314(.)html
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