Electronegativity: Definition, Trends, & Examples скачать в хорошем качестве

Electronegativity: Definition, Trends, & Examples

Electronegativity is a measure of an atom's tendency to attract a bonding pair of electrons. It’s important to note that electronegativity specifically refers to the attraction of the electrons within a bond. In this video, we explore the trends in electronegativity, starting with the observation that fluorine is the most electronegative element. Moving across a period from left to right, electronegativity increases as the number of protons increases, resulting in a stronger nuclear charge. Conversely, as we move down a group, atoms become larger and gain additional energy levels, which decreases their electronegativity. We also discuss how differences in electronegativity can lead to unequal sharing of electrons in a chemical bond. This creates partial positive and negative charges, resulting in polar molecules. Finally, we provide examples and practice problems to help solidify your understanding of this key chemical concept. Chapters: 0:00 - 0:32 Definition of Electronegativity 0:33-1:00 Electronegativity and Polarity 1:01-2:39 Trends for Electronegative & Practice 2:40- 4:21 Explanation of Trends 4:22 - 5:16 Summary