9th Chemistry Chapter3 Periodic Table and Periodicity of Properties

Sr #	Questions	A	B	C	D
1	All the elements of Group IIA are less reactive than alkali metals. This is because these elements have ;	high ionization energies	relatively greater atomic sizes	similar electronic configuration	decreased nuclear charge
2	First tree periods along re called :	short periods	long periods	small periods	periodic table
3	Mendeleev periodic Table was based upon the :	electronic configuration	atomic mass	atomic number	completion of a subshell
4	Long form of periodic Table is constructed on the basis of	Mendeleev postulate	atomic number	atomic mass	mass number
5	Main group elements are arranged in ………… groups.	6	7	8	10
6	As you move from right to left across a period, which of the following does not increase:	electron affinity	ionization energy	nuclear charge	shielding effect
7	4th and 5th period of the long form o fperiodic Table are called :	shorts periods	normal periods	very long periods	long periods
8	Which of the following elements belongs to VIIIA?	Na	Mg	Br	Xe
9	Which of the following elements you expect to have greater shielding effect ?	Li	Na	K	Rb
10	Valence shell electronic configuration of an element M (atomic no. 14 ) is :	2s^ssp^1	2s^2 2p^2	2s^2 2p^3	3s^2 3p^2
11	The ionization energy value decreases from top to bottom in a :	period	periodic table	group	electron affinity
12	The atomic radii of the elements in periodic Table :	increase from left to right in a period	increase from top to bottom in a group	do not change from left to right in a period	decrease from top to bottom in a group
13	Each vertical colum of elememts in the periodic table is called :	transition elements	periods	table	group or family
14	Which of the following groups contain alkaline earth metals?	1A	IIA	VIIA	VIIIA
15	Number of periods in the periodic table are:	8	7	16	5
16	The amount of energy given out when an electron is added to an atom is called :	lattice energy	ionization energy	electronegativity	electron affinity