L1 /
6
CH1012
METALLIC CHARACTER
• Aluminium, for
example, is clearly metallic but (like
Be) is on the borderline between ionic
& covalent in its cmpds.
B
Al
Ga
In
Tl
METALS
NON-METALS
METALLOID
Metalloids: solids
under ambient conditions.
Most are semi-conductors rather than
conductors and form covalent rather than
ionic compounds with non-metals. eg. silicon
Most are semi-conductors rather than
conductors and form covalent rather than
ionic compounds with non-metals. eg. silicon