X(N03)2
Given: Consider a hypothetical atom x
molecular formula of calcium nitrate = Ca(NO3)2
formula of x chloride is xcl2
molecular formula for x nitrate = ?
- we are first putting calcium with chloride
- on checking calcium on the periodic table we observe it in group 2
- so calcium has two plus charge
- whereas chloride being a halogen it is observed in group 7
- it forms ion with one negative charge which would become CaCl2
- so if we have Ca(NO3)2 and see a Cl2
- with our hypothetical atom x , if the formula of x with chloride as XCl2 then formula with the nitrate is going to be x
- this will be similar to calcium because calcium is just like it when we look at calcium with chloride
- hence when x goes with nitrate it is going to look just like the formula for calcium nitrate
- this gives us the final answer to be X(NO3)2
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