StudentAidUnit 8: Periodic Table & Periodicity — Mcqs
9th Class Chemistry · Unit 8: Periodic Table & Periodicity
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Multiple Choice Questions (Exercise)
1.In which period and group you will place the element which is an important part of the solar cell?
2.Identify the electronic configuration of the outermost shell of transition metal.
3.Which is the softest metal?
4.A yellow solid element exists in allotropic forms which is also present in fossil fuel. Indicate the name.
5.How many electrons can nitrogen accept in its outermost shell?
6.Which element is the most reactive element?
7.Which element has the highest melting point?
- a Na
- b K
- c Rb
- d Cs
8.In what order does the metallic character Change in the second group?
- a Mg> Ca>Ba>Sr
- b Sr>Ba>Mg>Ca
- c Mg> Sr> Ca> Ba
- d Ba> Sr> Mg>Ca
9.Which of the following best describe the correct order of oxygen, fluorine, and nitrogen's Atomic radii?
10.The element having less value of ionization energy and less value of electron affinity is likely to belong to:
SLO Based Additional MCQ's - Modern Periodic Table
11.When we move from left to right in a period, atomic size:
12.Number of periods in the periodic table are:
13.Which of the following groups contain alkaline earth metals?
14.Which of the following element belong to VIII A?
15.Main group elements are arranged in ___ groups.
16.Period number of ²³₁₃Al is:
17.All the elements of Group IIA are less reactive than alkali metals. This is because these elements have:
18.The atomic radii of the elements in periodic table:
19.4th and 5th period of the long form of Periodic Table are called:
20.Which one of the following halogens has lowest electronegativity?
21.Transition elements are:
22.How many groups are present in the modern periodic table?
23.How many periods are present in the modern periodic table?
24.How many elements are present in 1st period?
25.How many elements are present in each 2nd & 3rd period?
26.How many elements are present in each 4th & 5th period?
27.How many elements are present in 6th period?
28.How many elements are present in 7th period?
29.How many blocks are present in modern periodic table?
30.Elements are classified into four blocks depending upon:
31.The elements of group 1 and 2 are placed in which block:
32.Elements of groups 13 to 18 have their valence electrons in subshell:
33.Which of the following elements is present in 1st period?
34.Second and third periods are called:
35.Which element is present in 2nd period?
36.Elements with atomic no.58 to 71 are called:
37.Lanthanides belong to period:
38.Elements with atomic no. 90 to 103 are called:
39.Actinides belong to period:
40.Lanthanide series starts after the element:
41.Atomic number of lanthanum is:
42.Actinide series starts after the element:
43.Atomic number of actinium is:
44.Group number tells about the:
45.Period number tells about the:
46.Which period of the modern periodic table is considered as incomplete period?
47.Which of the following elements is present in group IA?
48.Elements of Group 1 are called:
49.How many electrons are present in the valence shell of group 1 elements?
50.17th group elements are known as:
51.17th group elements contain electrons in their outer most shell:
52.The elements of group 3 to 12 are called:
53.All transition elements belong to:
54.The vertical columns present in the periodic table are called:
55.The horizontal lines present in the periodic table are called:
56.Number of elements in each normal period are:
57.With the increase of atomic number, the number of electrons in an atom also:
58.Elements of group 13 to 18 have their valence electrons in subshell.
59.Which is strongest oxidizing agent?
60.The order of stability of hydrogen halides is:
61.Which halogen member exists in a liquid state at room temperature?
Similarities in the Chemical Properties of Elements in the Same Group
62.Elements of a period show properties:
63.The elements of a group show properties:
Variation of Periodic Properties in Periods and Group
64.The amount of energy given out when an electron is added to an atom is called:
65.Along the period, which one of the following decreases:
66.Mark the incorrect statement about ionization energy:
67.Point out the incorrect statement about electron affinity:
68.Unit of atomic size is:
- a nm
- b pm
- c kJ/mol⁻¹
- d Both a & b
69.The distance between the nuclei of two carbon atoms in its elemental form is:
70.When we move from left to right in a period, atomic number:
71.When we move from top to bottom in a group, atomic size:
72.The minimum amount of energy which is required to remove an electron from valence shell of the gaseous state of an atom is called:
73.The unit of ionization energy is:
74.When we move top to bottom in a group, ionization energy:
75.When we move from left to right in a period, ionization energy:
76.The first ionization energy of sodium atom is:
77.Unit of electron affinity is:
- a pm
- b kJ/mol
- c kJ/mol⁻¹
- d Newton
78.Electron affinity of fluorine in kJ/mol⁻¹ is:
79.The ability of an atom to attract the shared pair of electrons towards itself in a molecule is called:
80.Which one of the following halogens has highest electronegativity?
81.Electronegativity of oxygen is:
82.The electronegativity of carbon is:
83.The first ionization energy of oxygen:
84.The first ionization energy of Magnesium:
85.The ionization energy of Potassium:
86.The electron affinity of Carbon:
Metallic Character and Reactivity
87.Metals can form ions carrying charges:
88.Pure alkali metals can be cut simply by knife but iron cannot because of alkali metals have:
89.Metals lose their electrons easily because:
90.Metals are the elements which have:
91.Which are good conductor of heat and electricity?
92.All metals bear:
93.Metals possess:
94.Sodium metal has electrons:
95.Which group of elements has low ionization energies?
96.Platinum alloyed with which metal is used as catalyst in automobiles as catalytic convertor?
97.Which one of the following is a metal?
98.The heaviest metal is:
99.The density of sodium is:
100.The density of Caesium is: