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C part

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Asked by lovemaan5500 18th March 2018, 3:18 PM
Answered by Expert
Answer:

1) Thallium

2) Electronic configuration of boron is (2,3)

    Velence electrons = 3

    Molecular formula is BCl3

3) Boron

4) Group 13

Answered by Expert 18th March 2018, 4:10 PM
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