METALS,
METALLOID, AND
NON-METALS
31 MAY 2025
,RECAP: NAME AND FORMULAR OF
COMPOUNDS
1. Metals + Non-metals (Valency of periodic table)
2. Transition metals (are not the same as metalloid) – are located from
group from group 3 to 11 on the periodic table: are given with roman
number
3. Non-metal + non-metal: prefix (mono, di, tri) are used depending on
the number of atoms for each non-metal
4. Polyatomic Compounds (Not found on the periodic table): examples:
hydroxide (), Sulphate , Sulphite
, METALS, METALLOID, AND NON-METALS
• Elements are divided into: Metals, Metalloid, and Non-metals
METALLOID, AND
NON-METALS
31 MAY 2025
,RECAP: NAME AND FORMULAR OF
COMPOUNDS
1. Metals + Non-metals (Valency of periodic table)
2. Transition metals (are not the same as metalloid) – are located from
group from group 3 to 11 on the periodic table: are given with roman
number
3. Non-metal + non-metal: prefix (mono, di, tri) are used depending on
the number of atoms for each non-metal
4. Polyatomic Compounds (Not found on the periodic table): examples:
hydroxide (), Sulphate , Sulphite
, METALS, METALLOID, AND NON-METALS
• Elements are divided into: Metals, Metalloid, and Non-metals
