2.3 Study Guide Flashcards
What happens with electrons during ionic bonds?
They transfer, they do not share electrons
What happens with electrons during polar covalent bonds?
They share electrons unequally
What happens with electrons during non-polar covalent bonds
They share electrons equally
Properties of Ionic Bonds
-conduct electricity
-have high melting points
-form crystals
-dissolve in water
-metal/non-metal
Properties of Covalent Bonds
-do not conduct electricity
-low melting point
-non-metals
Polar vs Nonpolar
Polar bonds share unequally and non-polar share equally
When given sodium and chlorine, what type of bond will form? Why?
Ionic because sodium has a low electronegativity, and chlorine has a high electronegativity and they will transfer ions, sodium transferring to chlorine causing them to become ions with opposite charges.
When given hydrogen and chlorine, what type of bond will form? Why?
Polar Covalent because the electrons are being shared unequally. They are both non-metals, and hydrogen has a weaker pull than chlorine does.
How does Electronegativity determine what type of bond two atoms will form?
it measures how strongly atoms attract to new bonding electrons to themselves, so it determines their attraction and based on their attraction will give you the type of bond they have.
When given hydrogen and hydrogen, what type of bond will form? Why?
Non-Polar Covalent because the electrons are being shared equally. They are both non-metals, and are the same element meaning they have equal strength pull.
