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Find the odd one out and give its explanation.
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The modern periodic table is divided into which blocks?
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Write chemical formula for rust.
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Write Fleming’s right hand thumb rule with the help of diagram.
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Write Fleming’s left hand rule.
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Write the two names in the following diagram.
Right hand thumb rule.
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Write the two names in the following diagram.
Fleming’s right hand rule.
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Write the name.
The lens used in simple microscope.
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The modern periodic table has 1 to 7 periods.
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The modern periodic table shows the molecular masses of the elements in each frame.
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p-block is composed of groups 1 and 2.
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To the left of the zig-zag line in the periodic table are the metal elements.
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The K and L shells of the elements Na and Mg contain electrons.
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The power of the magnifying glass depends on the distance of the magnifying glass from object.
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Write an Explanation.
Period
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Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
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Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
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Write scientific reason.
Adults need bifocal lens spectacle.
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Complete the following flow chart.
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In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.
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