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photoshop1234 [79]
3 years ago
9

15

Chemistry
1 answer:
Len [333]3 years ago
8 0
A.) AlO is the correct formula
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3 years ago
---
svet-max [94.6K]
  • No of protons=No of electrons=15
<h3>Mass no:-No of neutrons+No of protons </h3>

\\ \tt\longmapsto 15+16=31

Now

  • It has atomic no 15 hence its Phosphorus(P)

Electronic configuration:-

\\ \tt\longmapsto 1s^22s^22p^63s^23p^3.

  • Valency=3

Chloride formula:-

\\ \tt\longmapsto XCl_3

or.

\\ \tt\longmapsto PCl_3

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Read 2 more answers
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