Question

The atomic radius of F, Li and Ne are in order?

Answer 1

Answer:

Li>Ne>F this is the correct order

Answer 2

Answer:

The size of an atom is determined by its atomic radius, which is commonly calculated as the distance between its nucleus and its electron clouds.

In other words, it is the distance from the nucleus's core to the region where the electron cloud's density is at its highest.

Explanation:

Fluorine, lithium, and neon belong to the same period i.e., period 2.

We know that, along a period in the periodic table, effective nuclear charge  (Z$_{eff}$) increases which makes the electrons come closer to the nucleus. Thus, the atomic size of the element decreases.

The atomic number of fluorine, lithium, and neon are 9, 3, and 10 respectively.

Thus, along the second period, the effective nuclear charge increases in the order Li < Ne < F. Fluorine has 5 valence electrons and requires 1 electron to attain the noble gas configuration. Thus, it has hgher  $Z_{eff}$ than neon.

We know that it is inversely proportional to the atomic radius.

Hence, the increasing order of the atomic radius is F < Ne < Li.

The final answer is F < Ne < Li.

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