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If x = 39 , z = 132 find y by dobereiner triad

Which is the correct order of electronegativity

Periodic table

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Answers

1
Which is the correct order of electronegativity
All
F>cl>br>I
Cl>s>p>si
Si>al>mg>na
2
If x = 39 , z = 132 find y by dobereiner triad
93.0
88.5
171
85.5
3
Elements whose atoms have three outermost shells incomplete are called
S block
P block
F block
D block
4
Which of the following pairs have most negative election gain enthalpy and least negative
Cl,f
Cl,s
F,cl
Cl,p
5
Mendeleev's periodic law is based on
Atomic number
Number of neutrons
Atomic weight
None of the above