The total number of lone pairs for the ion I3- is :
9
Valence electrons in I3- = 3 × 7 + 1 = 22 = 11 electron pairs
Bond pairs (two I-I bonds) = 2
Lone pairs = 11 - 2 = 9
Check: central I has 3 lone pairs (sp3d, linear) and each terminal I has 3 lone pairs: 3 + 3 + 3 = 9
The central iodine holds five electron pairs in a trigonal bipyramidal arrangement with its lone pairs in the equatorial positions, so the ion is linear and the terminal atoms each keep a full octet.
Hence, 9.
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Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
