Chemistry Exam > Chemistry Videos > Inorganic Chemistry > Alkali Earth Metals
Alkali Earth Metals Video Lecture | Inorganic Chemistry
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FAQs on Alkali Earth Metals Video Lecture - Inorganic Chemistry
| 1. What are alkali earth metals? |  |
Ans. Alkali earth metals are a group of chemical elements found in the second column of the periodic table. They include beryllium, magnesium, calcium, strontium, barium, and radium. These metals are known for their high reactivity and ability to form alkaline solutions when combined with water.
| 2. What are the properties of alkali earth metals? | |
Ans. Alkali earth metals have several common properties. They have relatively low melting and boiling points, high electrical and thermal conductivity, and are silvery-white in appearance. They are also highly reactive, easily forming compounds with other elements. Additionally, they have low densities and are less reactive than alkali metals.
| 3. What are some uses of alkali earth metals? | |
Ans. Alkali earth metals have various applications in everyday life. For example, magnesium is used in the production of lightweight alloys, while calcium is essential for strong bones and teeth. Strontium is used in fireworks to produce a red color, and barium compounds are used in X-ray imaging. Beryllium is used in the aerospace industry due to its strength and lightness.
| 4. How are alkali earth metals different from alkali metals? | |
Ans. While both alkali earth metals and alkali metals belong to the same group on the periodic table, there are key differences between them. Alkali metals are found in the first column of the periodic table and are more reactive than alkali earth metals. Alkali metals also have lower melting and boiling points and are softer in texture compared to the harder alkali earth metals.
| 5. Why are alkali earth metals named as such? | |
Ans. Alkali earth metals are named based on their chemical properties. The term "alkali" refers to their ability to form alkaline solutions when combined with water. The term "earth" was historically used to describe compounds that were insoluble in water and resembled compounds found in the Earth's crust. Hence, these metals were named alkali earth metals.
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Dec 22, 2024 Last updated |
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