a. The number of electrons in the outermost shell of alkali metals is _____.
b. Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in _____.
(i) Group 2
(ii) Group 16
(iii) Period 2
→ Group 221
c. Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Which of the following elements be present in the same group as X.
d. In which block of the modern periodic table are the nonmetals found?
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05 August 2019 at 05:09