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    Question

    Which factor(s) led scientists towards the

    classification of elements? (i) Different methods of synthesis of elements (ii) Different source of elements (iii) Different properties of elements       
    A i, ii, iii Correct Answer Incorrect Answer
    B Only ii Correct Answer Incorrect Answer
    C Only iii Correct Answer Incorrect Answer
    D Only i Correct Answer Incorrect Answer

    Solution

    Moseley's Modern periodic law According to Moseley's Modern periodic law, Elements are Arranged in a Tabular form based on their Atomic Numbers. it states that the Chemical and Physical Properties of Elements is a Periodic Function of their Atomic Number. Newland Newland arranged the Elements in the Order of Increasing Atomic Masses and found that the Properties of Every 8th Element are Similar to that of the 1st Element, Just like musical notes. Mendeleev Mendeleev arranged the Elements in the Increasing Order of their Atomic Mass. Mendeleev's Periodic table is based on the Chemical Properties of the Elements. It contains 7 Periods(horizontal rows) and 8 Groups (vertical columns). Share on Whatsapp

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