Bonding Flashcards
(8 cards)
What is a covalent bond?
Shared pairs of electrons
Name the type of force that holds the particles together in an ionic crystal
Electrostatic attraction between ions of opposite charge
State how a coordinate bond is formed
When a lone pair from one atom is donated to an electron deficient species to make a covalent bond
What does a + symbol above an atom signify?
A partial positive charge
Explain why the boiling temperature of NH3 is greater that that of PH3
NH3 can form hydrogen bonds between molecules, PH3 doesn’t. This is because Nitrogen is more electronegative that phosphorous
Why do ionicly bonded atoms have high melting points?
Because the ionic bonds are very strong and there are lots only bonds that need to break
Deduce why the bonding in nitrogen oxide is covalent rather than ionic
small electronegativity difference
Suggest the type of crystal shown by OF2
simple molecular
