Cesium (Cs)
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The largest element on the periodic table, Oganesson (Og), has 118 protons.
This element is barium.
To find the largest element in a row, you can iterate through the elements of that row and keep track of the largest value encountered. To find the largest element in a column, you can iterate through the elements of that column and similarly keep track of the largest value encountered. Remember to handle edge cases such as empty rows or columns.
Radon is the largest noble gas element in terms of atomic size.
Boron has the largest empirical atomic radius: 85 pm.