Structure and Bonding Flashcards
What is a covalent bond?
A bond that 2 toms share electrons
Name some properties of ionic compounds
high melting points and all solids at room temperature
Can ionic compounds conduct electricity?
yes
Do simple molecules have high or low melting points?
low
Why do simple molecules have lo melting points
because they have weak intermolecular forces
What kind of melting points do giant covalently bonded substances have?
Very high
What are alloys?
mixtures of metals and are harder than pure metals because the layers in the structures are distorted
What do delocalised electrons allow metals to do?
conduct heat and electricity well
What happens when we bend and shape metals?
the layers of atoms in the giant metallic structures slide over each other
What is ionic bonding?
Ionic compounds that are held together by strong forces between the oppositely charged ions
