Section-D: Comprehension Type
Comprehension (s-Block Element)
Primary minerals are the source of metals. The s-block metals occur as chlorides, silicates and carbonates. The d and p-block metals are found as oxides and sulphides except for the group 3. Metals which occur as phosphates and the platinum group metals and gold, which occur in uncombined form.
S-block elements generally occur as carbonates and silicates (as MgCO3, CaSiO3) because.