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Alkaline earth metals have lower melting...

Alkaline earth metals have lower melting point than correspondig alkali metals.

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To determine whether the statement "Alkaline earth metals have lower melting points than corresponding alkali metals" is true or false, we can analyze the properties of both groups of metals. ### Step-by-Step Solution: 1. **Identify the Groups**: - Alkaline earth metals belong to Group 2 of the periodic table. - Alkali metals belong to Group 1 of the periodic table. 2. **Electron Configuration**: - Alkaline earth metals have the electron configuration ending in ns² (where n is the period number). - Alkali metals have the electron configuration ending in ns¹. 3. **Metallic Bonding**: - The melting point of metals is largely influenced by the strength of metallic bonds, which depend on the number of delocalized electrons. - Alkaline earth metals have two valence electrons, which can contribute to stronger metallic bonding compared to alkali metals, which have only one valence electron. 4. **Comparison of Melting Points**: - Due to the presence of two valence electrons, alkaline earth metals form stronger metallic bonds, resulting in higher melting points. - In contrast, alkali metals, with only one valence electron, have weaker metallic bonds and therefore lower melting points. 5. **Conclusion**: - Since alkaline earth metals have higher melting points than alkali metals, the statement "Alkaline earth metals have lower melting points than corresponding alkali metals" is **false**. ### Final Answer: The statement is **false**. Alkaline earth metals have higher melting points than alkali metals.

To determine whether the statement "Alkaline earth metals have lower melting points than corresponding alkali metals" is true or false, we can analyze the properties of both groups of metals. ### Step-by-Step Solution: 1. **Identify the Groups**: - Alkaline earth metals belong to Group 2 of the periodic table. - Alkali metals belong to Group 1 of the periodic table. ...
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Explore conceptually related problems

(a). Which alkaline earth metals do not give characteristic colour to the Bunsen flame? (b). Why alkaline earth metals do not form tripositive ions? (c ). Why alkaline earth metals are diamagnetic, but alkali metals are paramagnetic? (d). Why the first inonisation enthaply pf alkaline earth matals is higher than those of corresponding alkali metals? (e). Why alkaline earth metals are less electropositive than corresponding alkali metals?

Alkaline earth metals show:-

The atomic radii of alkaline earth metals are smaller than those of the corresponding alkali metals. Explain, why?

(a) Why alkaline earth metals are harder, have higer melting ponts and higher densities than the alkali metals? (b). Why the atoms of alkaline earth metals are smaller than the corresponding alkali metals? (c ). Why alkaline earth metals have high electrical and thermal conductivities? (d). What is black ash? (e). Why the variation in physical properties of alkaline earth elements is not as regular as in the case of alkali metals?

Assertion (A): Alkaline earth metals are harder than alkali meatals. Reason (R ): Atomic radii of alkaline earth metas are smaller thant the corresponding alkali metals in the same period.

Assertion : The alkaline earth metal hydroxides are more basic than the corresponding alkali metal. Reason : The ionisation enthalpies of alkaline earth metals are much lower than those of alkali metals.

Why do alkaline earth metals have higher melting points than group 1 elements ?

The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to 30^(@)C ?

The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to 30^(@)C ?

The densities of alkaline earth metals are much smaller than those of alkali metals.