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9th Chemistry Chapter3 Periodic Table and Periodicity of Properties

Sr #QuestionsABCD
1

4th and 5th period of the long form o fperiodic Table are called :

 shorts periods normal periods very long periods long periods
2

Mendeleev periodic Table was based upon the :

 electronic configuration atomic mass atomic number completion of a subshell
3

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
4

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
5

The ionization energy value decreases from top to  bottom in a :

 period periodic table group electron affinity
6

Each vertical colum of elememts in the periodic table is called :

 transition elements periods table group or family
7

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
8

First tree periods along re called :

 short periods long periods small periods periodic table
9

Number of periods in the periodic table are:

 8 7 16 5
10

Which of the following groups contain alkaline earth metals?

 1A IIA VIIA VIIIA
11

The amount of energy given out when an electron is added to an atom is called :

 lattice energy ionization energy electronegativity 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