Answer:
D) atomic radii increase from top to bottom of a group
Explanation:
Atomic radii trend along group:
As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.
As the size of atom increases the ionization energy from top to bottom also decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.
Other options are incorrect because,
A) atomic radii increase from left to right across the period
Correct = atomic radii decreases from left to right across the period
B) ionization energy increases from top to bottom within a family
Correct = ionization energy decreases from top to bottom within a family
C) electronegativity decreases from left to right across a period
Correct = electronegativity increases from left to right across a period
Answer:
second law of acceleration
Explanation:
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Answer:
B. HF
Explanation:
Hydrogen bonding is basically a bond between hydrogen and an electronegative element particularly the second-row elements nitrogen (N), oxygen (O), or fluorine (F).
option A.
Although oxygen is present, there are no O - H bond present. The oxygen is bonded to two carbon atoms hence hydrogen bonding is absent.
option B.
Hydrogen is bonded directly to Flourine. Hydrogen bond is present.
option C.
This is an organic compound, only covalent bonds are present in this molecule. No hydrogen bonds,
option D.
Lithium does snot have high electronegativity hence hydrogen bonding is absent.
Answer:
the attribution of a personal nature or human characteristics to something nonhuman, or the representation of an abstract quality in human form.
Explanation:
