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A, B, C Are Three Elements in Which B is an Inert Gas Other than Helium.With this Information Complete the Following Table. - Chemistry

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A, B, C are three elements in which B is an inert gas other than helium.With this information complete the following table.

Element Atomic number No. of electrons in the valence shell Group to which the element belongs
A Z - 1    
B Z    
C Z + 1    

Also, explain the following : Electron affinity of B is Zero.

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Solution

Element Atomic number No. of electrons in the valence shell Group to which the element belongs
A Z - 1    
B Z    
C Z + 1 1 1

Since B is a noble gas element so its electron affinity is zero as its octet is complete.

Concept: Periodic Properties - Periodic Properties: Electron Affinity
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Frank ICSE Class 10 Chemistry Part 2
Chapter 1 Periodic Properties And Variation Of Properties: Physical And Chemical
Exercise | Q 2.3 | Page 17
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