The element, Neon (Ne), is the smallest among the given elements
From the question,
We are to determine which of the given elements is the smallest.
The given elements are
Be - Beryllium
Ne - Neon
O - Oxygen
Li - Lithium
B - Boron
From the periodic table, we can observe that all of the given elements belong to period 2.
Using the trend of atomic size on the periodic table,
We know that, atomic size decreases across the period.
This means, the atomic sizes of the elements will decrease in the order
Li > Be > B > O > Ne
Hence, the element, Neon (Ne), is the smallest among the given elements
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