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Bond that forms when atoms share electrons
covalent
Bond that forms when atoms share electrons unequally
polar covalent
IMF all molecules have that is caused by movement of electrons
dispersion forces
Most atoms need this many valence electrons to be stable
8
How strongly an atom pulls electrons
electronegativity
the strongest IMF
hydrogen bond
When magnesium forms an ion it will have this charge
+2
A molecule with areas of partial charges
a polar molecule
The IMFs present in H2O
hydrogen bonds
Which of these will form hydrogen bonds: H2O, CH4, NH3
H2O and NH3
What do strong IMFs do to boiling point?
increase boiling point
List two properties of ionic compounds
high melting point, crystalline solid structure, conduct electricity when dissolved or melted
List two properties of covalent compounds
low melting point, do not conduct electricity, many are gases
What is an alloy?
mixture of two or more elements at least one is a metal
give an example of an alloy
steel, bronze, stainless steel,...
what is unique about the electrons in a metallic bond
they can move freely
