Give one way in which compounds can be broken down into their elements.
Hydrated substances contain
How can water of crystallisation be driven off?
Water of crystallisation
Exceptions to the octet rule
Valency of group 1
Valency of group 2
Valency of group 3
Valency of group 4
Valency of group 5
Valency of group 6
Valency of group 7
Valency of group 0
Why is helium safer than hydrogen in balloons and blimps although they both have low densities?
Why is argon added to light bulbs?
Ionic bonding typically happens between
Positively charged ions
Is the cation generally larger or smaller than the corresponding atom?
Do the metals or the non-metals become cations?
Negatively charged ions
Do metals or non-metals generally become anions?
Is the anion generally larger or smaller than the corresponding atom?
Electrons are ...... in ionic bonding
Everyday examples of ionic substances
Characteristics of ionic substances
Electrons in a covalent bond are
Each shared pair is
Electron pairs involved in bonding are called
Electron pairs not involved in bonding are called
Ionic bonding results in the formation of
Covalent bonding results in the formation of
Covalent bonds form between
Double covalent bonds form between
Triple covalent bonds form between
Two s orbitals overlapping
The strength of covalent bonds can be measured by
Electrons shared equally
What two factors dictate the extent to which the shared electrons are attracted by different nuclei
Electrons shared unequally
Characteristics of covalent compounds
Examples of covalent compounds
What is the most common scale of electronegativity?
The higher the electronegativity value
3 factors responsible for the variation in electronegativity values
Difference of more than 1.7
Difference of 0 or very little
less than 1.7
Created by eimearkelly3 over 3 years ago