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Which of the following is a property of alkaline-earth metals?
- a)They have low melting points.
- b)They are highly reactive with water.
- c)They are soft and malleable.
- d)They exist as diatomic molecules.
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is a property of alkaline-earth metals?a)They h...
Properties of Alkaline-Earth Metals:
1. They are soft and malleable: Alkaline-earth metals are relatively soft and can be easily cut with a knife. They also possess a silvery-white appearance and can be easily shaped or molded into different forms. This property makes them useful in various applications such as metallurgy and construction.
2. Low melting points: Alkaline-earth metals generally have higher melting points compared to alkali metals but lower melting points compared to transition metals. This property makes them suitable for use in various industries where moderate temperatures are required.
3. Reactivity: Alkaline-earth metals are less reactive than alkali metals but are still considered quite reactive. They react readily with oxygen, water, and halogens to form various compounds. However, their reactivity is lower compared to alkali metals.
4. Existence as diatomic molecules: Alkaline-earth metals do not exist as diatomic molecules. Instead, they exist as metallic elements with a single atom structure in their elemental form. This is in contrast to some nonmetals like oxygen, nitrogen, and chlorine, which exist naturally as diatomic molecules.
In conclusion, the property of being soft and malleable is a characteristic feature of alkaline-earth metals. This property sets them apart from other groups of elements and contributes to their versatility in various industrial applications.
1. They are soft and malleable: Alkaline-earth metals are relatively soft and can be easily cut with a knife. They also possess a silvery-white appearance and can be easily shaped or molded into different forms. This property makes them useful in various applications such as metallurgy and construction.
2. Low melting points: Alkaline-earth metals generally have higher melting points compared to alkali metals but lower melting points compared to transition metals. This property makes them suitable for use in various industries where moderate temperatures are required.
3. Reactivity: Alkaline-earth metals are less reactive than alkali metals but are still considered quite reactive. They react readily with oxygen, water, and halogens to form various compounds. However, their reactivity is lower compared to alkali metals.
4. Existence as diatomic molecules: Alkaline-earth metals do not exist as diatomic molecules. Instead, they exist as metallic elements with a single atom structure in their elemental form. This is in contrast to some nonmetals like oxygen, nitrogen, and chlorine, which exist naturally as diatomic molecules.
In conclusion, the property of being soft and malleable is a characteristic feature of alkaline-earth metals. This property sets them apart from other groups of elements and contributes to their versatility in various industrial applications.
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Which of the following is a property of alkaline-earth metals?a)They h...
Alkaline-earth metals are relatively soft and malleable, which means they can be easily shaped or bent without breaking.
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