23. The atomic numbers of the S elements A, B, C, D and E are 6, 8, 3, 7 and 9
respectively. The metallic property of which of these elements is less and why?
What is your conclusion on the relationship between metallic property and
electronegativity?
OR
a) What were the criteria used by Mendeleev in creating his Periodic Table ?
b) What are the achievements of Mendeleev's Periodic Table?
24. Differentiate between saturated and unsaturated hydrocarbons.
25. Draw a diagram to show testing the conductivity of a salt solution and label the
following parts. a) graphite rod b) salt solution under test
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ok so this is a big one but I am in 8 standard so I don't know please thank me your thanks if you thank me
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