Bonding Flashcards
What is the definition of covalent bonding?
Non metal elements sharing electrons to achieve a full outer shell of electrons.
What is mean when a molecule is diatomic?
It can only exist in a pair
What does it mean when atom is monatomic?
It exists as a single atom and does not form bonds
Which elements are diatomic?
H, N, O, F, Cl, Br, I
What group is monoatomic?
Noble gases
What elements are in the noble gases?
Helium, neon, argon, xenon, radon
What is a single covalent bond?
When atoms share one electron from each atom
What types of atoms form ionic bonds?
Non-metals bonding with metals
What kind of ions do metals form?
Positive
What kind of ions do non metals form?
Negative
Why do metals form positive ions?
They lose atoms to become stable
Why do non metals form negative ions?
They gain atoms to become stable
Name four properties of covalent bonds
-Low boiling and melting points
-Various colours
-Brittle solids
-Poor conductors of electricity
Name four properties of ionic bonds
-conducts electricity when liquid but not when solid
-high melting and boiling points
-usually are soluble
-brittle
Name four properties of metallic bonds
-Malleability
-Ductility
-High melting and boiling points
-High electrical and thermal conductivity
