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प्रश्न
An element X belongs to the 3rd period and 17th group, write the formula of the compound formed when X reacts with \[\ce{_13^27Y}\].
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उत्तर
\[\ce{_13^27Y}\] (2, 8, 3)
∴ Formula is YBr3.
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अध्याय 1: Periodic Table, Periodic Properties and Variations of Properties - lntext Questions [पृष्ठ ११]
