(a)
Interpretation:
The element with the smallest atomic radius needs to be determined using the trends in the periodic table.
Concept Introduction:
An atomic radius is calculated by taking the distance between two adjacent atoms of the same element and divided by 2 in a molecule.
(a)
Answer to Problem 71A
Fluorine (F) has the smallest atomic radius.
Explanation of Solution
The atomic radius of atoms increases when we go from top to bottom in a group.
Fluorine is the element of the 17th group. It is the first member and radius increase when we move downwards. So, the size of fluorine is the smallest.
(b)
Interpretation:
The element with the smallest atomic radius needs to be determined using the trends in the periodic table.
Concept Introduction:
An atomic radius can be defined as half the distance between two adjacent atoms of the same element in a molecule.
(b)
Answer to Problem 71A
Xenon (Xe) has the smallest atomic radius.
Explanation of Solution
As we move along a period, nuclear charge increases and the size of the atoms decreases.
Since Xe is extreme right in period 5 and it has the smallest atomic radius.
(c)
Interpretation:
The element with the smallest atomic radius needs to be determined using the trends in the periodic table.
Concept Introduction:
An atomic radius can be defined as half the distance between two adjacent atoms of the same element in a molecule.
(c)
Answer to Problem 71A
Neon (Ne) has the smallest atomic radius.
Explanation of Solution
The atomic radius of atoms increases when we move from top to bottom within a group.
Neon is the element of the 18th group. The radius increases when we move downwards. So, the size of neon is the smallest.
Chapter 11 Solutions
World of Chemistry, 3rd edition
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