Melting point of Na & Mg decreases down the group due to:
Correct answer: C. Increment in size
- A. Strong electronegativity
- B. Strong attractive forces
- C. Increment in size
- D. High Ionization Energy
Explanation
Generally the melting point of the metals decreases down the group. This is because as the metal ions get larger the distance between the bonding electrons and the positive nucleus gets larger and reduces the overall attraction between the two.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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