1.	Which one of the following does not increase while moving down the group of the Periodic Table ?
	Metallic character
	Valence
	Number of shells in an element
	Atomic radius
	Answer: Valence Explanation: All the elements of a group of the periodic table have the same number of valence electrons. e.g., all the elements of group 1 have one valence electron each in their atoms. All the elements of group 18 have 8 valence electrons each in their atoms, except helium which has only 2 valence electrons in its atom. All the remaining three properties increase down the group. Note: On moving down in a particular group of the periodic table, the number of valence electrons in the elements remains the same. All the remaining three properties increase down the group.
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2.	Which of the following is the outermost shell for elements of period 2 ?
	N shell
	M shell
	L shell
	K shell
	Answer: L shell Explanation: The elements of 2nd period involve the filling of 2nd shell i.e. L shell. Because in periods 2, there are two shell, K and L.
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3.	A purple coloured solid halogen is ________ ?
	astatine
	bromine
	chlorine
	iodine
	Answer: iodine Explanation:
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4.	At the end of each period the valence shell is __________ ?
	singly occupied
	completely filled
	half filled
	incomplete
	Answer: completely filled Explanation:
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5.	Which one of the following statements is not correct about the trends in the properties of the elements of a group on going down in a group ?
	The size of the atom increases.
	The metallic character of elements increases.
	The valence electrons increase.
	The chemical reactivity of metals increases.
	Answer: The valence electrons increase. Explanation:
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6.	The first alkali metal is _________ ?
	francium
	sodium
	hydrogen
	lithium
	Answer: lithium Explanation:
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7.	Which of the following factors does not affect the metallic character of an element ?
	Atomic radius
	Ionisation potential
	Atomic size
	Electronegativity
	Answer: Electronegativity Explanation:
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8.	New lands relation is called ?
	Atomic Mass Law
	Periodic Law
	Law of Octaves
	Musical Law
	Answer: Law of Octaves Explanation:
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9.	In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. which of the following elements found a place in the periodic table later ?
	Silicon
	Oxygen
	Germanium
	Chlorine
	Answer: Germanium Explanation: Mendeleev’s left some gaps in the periodic table for those elements which were not known at that time. Germanium element found a place in the periodic table later and Mendeleev’s predictions were found to be remarkably correct.
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10.	The non-metals are present ?
	On the left hand side of the periodic table.
	In the centre of the periodic table.
	In the middle of the periodic table.
	On the right hand side of the periodic table.
	Answer: On the right hand side of the periodic table. Explanation:
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