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An element has atomic number 20. Where would you expect this element in theperiodic table and why? |
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Answer» Calcium is the element with 'atomic NUMBER' 20. Explanation: Calcium BELONGS to group 2, period 4, and block 's' in the periodic table. This is because calcium is an 'alkaline earth metal' and alkaline earth METALS are placed in group 2 in the periodic table. |
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