(i) H2S molecule and
(ii) PO43- ion?
- (i) H₂S molecule: In one molecule of hydrogen sulfide (H₂S), there are three atoms – two hydrogen atoms (H) and one sulfur atom (S).
- (ii) PO₄³⁻ ion: In one phosphate ion (PO₄³⁻), there are five atoms – one phosphorus atom (P) and four oxygen atoms (O).
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