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An element ...

Question

An element $X$ has proton number $15$ , while element $Y$ has proton number $17$ , Draw a 'dot and cross' diagram to show all electrons in a molecule formed from $X$ and $Y$ .

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Solution

Element (X) having proton number $15$ is $P$
Element (Y) having proton number $17$ is $C l$
Dot and cross diagram of molecule X and Y is:

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