the tenth element in the periodic table resembles:

(1)the second

(2)the fourth

(3)the fifth

(4)the eight

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Modern Periodic Table
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Which of the following order is not in accordance with the property stated against it ?

                                                                                                           

(a) F2 > Cl> Br2 > l2 Oxidising Power

(b) Hl > HBr >HCl >HF Acidic property in water

(c) F2 > Cl> Br2 > lElectronegativity

(d) F2 > Cl> Br2 > l2 Bond dissociation energy

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Modern Periodic Table
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The outermost electronic configuration of the most electronegative element is :

(a) ns2np3

(b) ns2np4

(c) ns2np5

(d) ns2np6

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Modern Periodic Table
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The most non-metallic element among the following is:

(a) Be

(b) B

(c) Mg

(d) Al

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Modern Periodic Table
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Transuranic elements are those which are:

(a) of higher atomic number than uranium

(b) lighter than uranium

(c) of lower atomic number than uranium

(d) of same atomic number as uranium

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Modern Periodic Table
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Which of the following has the least density?

(1)Na

(2)Li

(3)Mg

(4)K

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Modern Periodic Table
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Eka aluminium and eka silicon are now known as:

(a) Ga and Ge

(b) Al and Si

(c) Fe and S

(d) H+ and Si

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Modern Periodic Table
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Variable valency is shown by:

(a) Na

(b) Cu

(c) Mg

(d) Al

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Modern Periodic Table
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the lightest metal in the periodic table is:

(1)H

(2)Mg

(3)Ca

(4)Li

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The difference between ions and atoms is of:

(a) relative size

(b) Configuration

(c) presence of charge

(d) All of these

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Modern Periodic Table
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