Which are the LARGEST atoms?

Answer 1

The #"Group 1 metals"#, the #"alkali metals............."#

A fundamental trend observed for the Periodic Table, is that atomic size INCREASES DOWN a Group, a column of the Periodic Table, yet DECREASES ACROSS a Period, a row of the Periodic Table, from left to right as we face the table.

This fundamental trend is a consequence of Periodicity, and two atomic properties. In a given atom, incomplete electronic shells shield the nuclear charge VERY INEFFECTIVELY. The result, as we go across a Period, the element to the right is a SMALLER atom due to the increased (and poorly shielded) nuclear charge.

Once a valence shell is filled, shielding of the atomic charge is effective, and the next valence shell is commenced (with the alkali metals) at a larger radius, a large separation from the nuclear core.

Of course, the Table is constructed so as to reflect the fundamental electronic structure.

As a chemist, as a physical scientist, you should look at actual data to inform your argument. Here is start.

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Answer 2

The largest atoms are those with the highest atomic number, such as radium and francium.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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