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The modern periodic table has been divided into(a) seven periods: three short and four long(b) nine periods : six short and three long(c) eighteen periods : ten short and eight long(d) nine periods from zero to VIII |
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Answer» Answer: The modern periodic table has been divided into (a) SEVEN periods: THREE short and four long (B) nine periods : six short and three long (C) EIGHTEEN periods : ten short and eight long (d) nine periods from zero to VIII |
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