(a) Interpretation: The element that is least reactive in group 1 is to be stated. Concept Introduction: Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
(a) Interpretation: The element that is least reactive in group 1 is to be stated. Concept Introduction: Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
The element that is least reactive in group 1 is to be stated.
Concept Introduction:
Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
Interpretation Introduction
(b)
Interpretation:
The element that is least reactive in group 7 is to be stated.
Concept Introduction:
Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
Interpretation Introduction
(c)
Interpretation:
The element that is least reactive in group 2 is to be stated.
Concept Introduction:
Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
Interpretation Introduction
(d)
Interpretation:
The element that is least reactive in group 6 is to be stated.
Concept Introduction:
Reactivity of an element depends on its size, ionization energy, number of valence electrons in the atom. On going down the group, the reactivity of the elements increases in case of metals and decreases in case of nonmetals. This unusual trend is because of the reactivity difference in metals and nonmetals.
Describe the principle of resonance and give a set of Lewis Structures to illustrate your explanation.
Don't used hand raiting
It is not unexpected that the methoxyl substituent on a cyclohexane ring
prefers to adopt the equatorial conformation.
OMe
H
A G₂ = +0.6 kcal/mol
OMe
What is unexpected is that the closely related 2-methoxytetrahydropyran
prefers the axial conformation:
H
H
OMe
OMe
A Gp=-0.6 kcal/mol
Methoxy: CH3O group
Please be specific and clearly write the reason why this is observed. This effect that provides
stabilization of the axial OCH 3 group in this molecule is called the anomeric effect. [Recall in the way of
example, the staggered conformer of ethane is more stable than eclipsed owing to bonding MO
interacting with anti-bonding MO...]