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प्रश्न
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.
विकल्प
Group 2
Group 16
Period 2
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उत्तर
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in Group 2.
Explanation:
Alkaline Earth Metals include Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra). These elements have valency 2 because they have two electrons in their outermost shell (s-orbital). In the Modern Periodic Table, elements are arranged in groups and periods based on their electronic configuration. All Alkaline Earth Metals belong to Group 2.
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संबंधित प्रश्न
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The element which forms a basis oxide has the atomic number of:
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(c) 14
(d) 19
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(c) Give the formula of the compound formed.
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1 18 a 2 13 14 15 16 17 b c d e
(i) Select the letter which represents an alkali metal.
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| Symbol | Atomic No | Electronic Configuration | |
| 1. | He | 2 | ______ |
| 2. | Ne | ______ | 2,8 |
| 3. | Ar | ______ | 2, 8,8 |
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