2.3 Flashcards
(5 cards)
What happens with electrons during ionic, polar covalent, and non polar covalent bonds?
Electrons are shared differently in ionic and covalent bonds. Covalent bonds can be non-polar or polar and react to electrostatic charges. Ionic bonds are due to electrostatic attractive forces between their positive and negative charged ions.
Differentiate between a polar and nonpolar covalent bond
Polar covalent bonds result when electrons are unequally shared between atoms, while nonpolar covalent bonds result when electrons are more equally shared between atoms.
When given two atoms, what type of bond will form between them and why?
Covalent, because it holds two atoms together as a molecule.
Explain how electronegativity determines what type of bond two atoms will form
In general, large differences in electronegativity result in ionic bonds, while smaller differences result in covalent bonds.
Comparing how ionic and covalent substances dissolve in water
When ionic compounds dissolve in water they go through a process called dissociation, splitting into the ions that make them up. However, when you place covalent compounds in water, they typically do not dissolve but form a layer on top of the water.