Question

Which of the following reason correctly justifies than "Fluorine (72pm) has
smaller atomic radius than lithium (152pm)
a) Fond Liare in the same group Atomic sizo increases down the group
b) T and I are in the same period atomic size increases across the
period due to increase in number of shells
c) F and I are in the same group Atomic size decreases down the group
d) F and Li are in the same period and across the period atomic size radius
decreases from left to right​

Answer 1

Answer:

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu +

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu + <Cu.But the measurement shows that Cu

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu + <Cu.But the measurement shows that Cu +

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu + <Cu.But the measurement shows that Cu + >Cu>Cu

The measurement is made wrongly.More the positive charge more will be the nuclear attraction and outermost electron is more attracted towards the nucleus and the distance(atomic radius) is less.So Cu 2+ <Cu + <Cu.But the measurement shows that Cu + >Cu>Cu 2+

Answer 2

Answer:

Explanation:

Atomic size definition:

• The distance between an atom's central nucleus and its outermost shell is known as its atomic size.
• The shortest distance between an atom's nucleus and its outermost shell is known as the atomic radius in basic chemistry.

Fluorine:

The chemical element fluorine has an atomic number of $9$ and the symbol F. The lightest halogen, it is an extremely poisonous, pale yellow diatomic gas under normal conditions. It is exceedingly reactive and, as the most electronegative element, reacts with all other elements with the exception of argon, neon, and helium.

Lithium:

The chemical element lithium, sometimes known as "stone," has the chemical symbol Li and atomic number $3$ and is derived from the Greek letter o. It is a delicate, white-silver alkali metal. It is the least dense metal and the least dense solid element under typical conditions. As with all alkali metals, lithium must be stored under vacuum, in an inert atmosphere, or in an inert liquid such as mineral oil or pure kerosene. It has a shiny sheen when cut, but damp air quickly corrodes it to a dull silvery grey, then a black patina. Only in (often ionic) compounds, such pegmatitic minerals, which were previously the principal source of lithium, can it ever occur freely in nature. It is prevalent in ocean water and is frequently recovered from brines because of its solubility as an ion. Electrolysis is used to separate lithium metal from a solution of lithium chloride and potassium chloride.

Reason correctly justifies than "Fluorine ($72$pm) has smaller atomic radius than lithium ($152$pm):

F and Li are in the same period and across the period atomic size radius

decreases from left to right​.

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