Complex sentence: According to simple extrapolations of relativity laws, that indirectly indicates the contraction of the atomic radius; however, advanced calculations show that the radius of an ununseptium atom that has formed one covalent bond would be 165 pm, while that of astatine would be 147 pm.
Split into simpler sentences: According to simple extrapolations of relativity laws, that indirectly indicates the contraction of the atomic radius. Advanced calculations show that the radius of an ununseptium atom that has formed one covalent bond would be 165 pm, while that of astatine would be 147 pm.