State one physical property of an ionic compound.
High melting and boiling point / conducts electricity in molten or aqueous state
Can covalent compounds conduct electricity?
Cannot (because they do not have free-moving ions or electrons)
Name the chemical bond
Ionic bond
Name the chemical bond
Covalent bond
Which type of elements usually form covalent bonds?
Non-metal with non-metal
What type of bond involves a 'sea of delocalized electrons'
Metallic bond
What kind of bond is formed when electrons are donate/receive from one atom to another?
Ionic bond
What kind of bond is formed when atoms share electrons?
Covalent bond
What type of elements usually form ionic bonds?
Metal and non-metal
Which type of compound dissolves better in water – ionic or covalent?
Ionic
What kind of bond is formed when both electrons in a shared pair come from the same atom?
Dative bond
Give one example of a covalent compound.
O₂, CO₂, Water (H₂O), Carbon dioxide (CO₂), Methane (CH₄)
Why do atoms form ionic bonds?
To achieve a stable duplet/octet electron arrangement
What is the bond called between a hydrogen atom and an electronegative atom like oxygen or nitrogen?
Hydrogen bond
Give one example of a substance where hydrogen bonding occurs.
Water (H₂O), ammonia (NH₃)