chap 5 Flashcards
(key word, sub shell so box, 4th box in every p shell is the last electron filled)
Nitride ion
N^3-
what is noble gas abbreviation
short hand for electron configuration
look at how many boxes have only one electron in it
Ans = 2
suffix “-ide” meaning
typically used for a negative ion in a compound
what should you look out for in balancing
.diatomic’s
.also e.g 3CO2 means there are also 6 O
what does an arrow bond represent in carbon monoxide
dative covalent
Explain why lithium fluoride conducts electricity when molten but not when solid
.in molten charged ions can move and conduct
.while as solid ions can’t move as fixed position in ionic lattice (need to give both sides)
if compound has charge what do you do (when asked to draw structure)
brackets around whole diagram and then show charge outside
give the formula of the ions present in NH4Cl
NH4^+ Cl^-
Describe what is meant by the term ionic lattice
repeating pattern of oppositely charged ions
nitrate formula
NO3-
what element’s usually give incomplete octet that I should know
Beryllium (Be) mnemonic: H.Li.Be.B
Boron (B)
Hydrogen (H)
Lithium (Li)
what compounds usually give incomplete octet
BF3 (Boron Trifluoride)
BeCl2 (Beryllium Chloride)
LiH (Lithium Hydride)
Recognize Incomplete Octets: Be able to identify compounds where these elements have fewer than 8 electrons in their valence shell.
Understand Stability: Understand that these compounds are stable due to the specific bonding characteristics and electronic configurations of these elements.
Common Examples: Be familiar with common compounds that illustrate incomplete octets:
By focusing on these key points and understanding the underlying principles of chemical bonding, you’ll be well-prepared to tackle questions related to incomplete octets in your A-level Chemistry exams.
expanded octet’s
you can use d orbitals also to figure it out but it’s weird
