An element of atomic number 15 will be expected to form I ionic compounds II covalent compounds III an acidic oxide AI, II and IIIBI and II onlyCII and III only DII only
Question
An element of atomic number 15 will be expected to form I ionic compounds II covalent compounds III an acidic oxide AI, II and IIIBI and II onlyCII and III only DII only
Solution
The correct answer is I, II and III.
Here's why:
The element with atomic number 15 is Phosphorus (P).
I. Phosphorus can form ionic compounds with metals. For example, with sodium, it forms sodium phosphate (Na3PO4).
II. Phosphorus can also form covalent compounds with non-metals. For example, with hydrogen, it forms phosphine (PH3).
III. When phosphorus reacts with oxygen, it forms phosphorus pentoxide (P4O10), which is an acidic oxide. It reacts with water to form phosphoric acid (H3PO4).
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