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how many groups and periods are there in modern table. how do atomic size and metallic characters as we go. 1. down a grow. 2. left to right. |
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Answer» . . ⭕There are 7 periods and 18 groups in the modern PERIODIC table. ⭕Metallic CHARACTER of an element DECREASES on moving left to right in a periodic table. and increases on moving down a group. ⭕Atomic SIZE decreases on moving from left to right in a periodic table and increases on moving down a group. ➖➖➖➖➖➖➖✌️ Thanks |
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