객관식
Which of the following diagrams correctly depicts the general trend in electronegativity across the periodic table?
107
views
10. Periodic Properties of the Elements
Periodic Trend: Electronegativity
객관식
If oxygen and hydrogen had the same electronegativity, how would this affect the properties of water (H2O)?
A
Water would have a higher boiling point because of stronger intermolecular forces.
B
Water molecules would become nonpolar, reducing their ability to form hydrogen bonds.
C
Water would become more acidic due to increased ionization.
D
Water would conduct electricity better due to increased ionic character.
검증된 단계별 안내1
Understand the concept of electronegativity: Electronegativity is the tendency of an atom to attract electrons in a chemical bond. In water (H\_2O), oxygen is more electronegative than hydrogen, which creates a polar molecule with partial positive and negative charges.
Analyze the effect of equal electronegativity: If oxygen and hydrogen had the same electronegativity, the electrons in the O-H bonds would be shared equally, making the bonds nonpolar.
Consider molecular polarity: Since the O-H bonds would be nonpolar, the overall water molecule would lose its polarity, becoming nonpolar as well.
Evaluate hydrogen bonding: Hydrogen bonding in water arises from the polarity of the molecule. Without polarity, water molecules would not form hydrogen bonds effectively.
Predict changes in physical properties: Without hydrogen bonding, water's unique properties such as high boiling point, surface tension, and solvent abilities would be significantly reduced.
관련 영상
관련 실천
