Question

Consider the section of the given periodic table:
Group
No.
1A/1 11A/2 IIA/13 IVA/14 VA/15 VIA/16 VIIA/17 0/18
D
Mg E
B
C
Here, B is not boron, C is not carbon, F is not fluorine, H is not hydrogen, K is not potassium.
Some elements are represented by their own symbols and positions in the periodic table. The others
are shown with a letter. Answer the questions on the basis of the given table
(i) Which is the most electronegative element?
(ii) In G, how many valence electrons are there?
(iii) Write the formula of the compound formed by B and H.
iv) What is the valency of L?
1) Which is the chemical name of K?
G
[2009]​

Answer 1

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