The larger ion among the pair S − 2 and Cl − should be determined. Concept introduction: Atomic radii of atoms of elements down the group increase as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
The larger ion among the pair S − 2 and Cl − should be determined. Concept introduction: Atomic radii of atoms of elements down the group increase as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
Definition Definition Number of protons in the nucleus of an atom. It uniquely identifies an element, as the number of protons determines the element's properties. The periodic table of elements is arranged based on increasing atomic numbers, allowing scientists to easily locate and study elements.
Chapter 5, Problem 36P
a)
Interpretation Introduction
Interpretation: The larger ion among the pair S−2 and Cl− should be determined.
Concept introduction: Atomic radii of atoms of elements down the group increase as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
b)
Interpretation Introduction
Interpretation: The larger ions among the pair Tl+ and Tl+3 should be determined.
Concept introduction: Atomic radii of atoms of elements down the group increase as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
c)
Interpretation Introduction
Interpretation: The larger ion among the pair Ce+3 and Dy+3 should be determined.
Concept introduction: Atomic radii of atoms of elements down the group increase as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
d)
Interpretation Introduction
Interpretation: The larger ions among the pair S−2 and I− should be determined.
Concept introduction: Atomic radii of atoms of elements down the group increases as Z increases because new shells are introduced and therefore the distance between nucleus and valence shell increases. Along a period, size or radii decreases as the electrons are introduced into the same shell and are pulled by higher nuclear charge.
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