ICSE 9 Chemistry
The Periodic Table
Question 1:
(a) Name the scientist who gave this table.
(b) Which group of elements were not known at this time?
(c) This system of arranging elements worked quite well for __________ (heavier/lighter) elements
(d) The table shown above relates the properties of the elements to their __________ (atomic mass/atomic number) [Level: Moderate]
Question 2:
The strongest reducing agents are elements of group:
(a) 2
(c) 17
(d) 16 [Level: Difficult]
Question 3:
Elements of which period summarise the properties of elements present in their respective groups?
(a) 4th period
(b) 2nd period
(d) 5th period [Level: Difficult]
Question 4:
The element with atomic number 18 is placed in the modern periodic table in:
(a) Period 7; Group 12
(b) Period 2; Group 17
(d) Period 4; Group 18 [Level: Difficult]
Question 5:
[Level: Moderate]
Question 6:
Z |
Element |
Electronic configuration |
Name of element in same group |
19 |
Potassium |
|
|
8 |
Oxygen |
|
|
17 |
Chlorine |
|
|
15 |
Phosphorus |
|
|
(b) Classify the elements given in the table as metals & non-metals.
(c) To which group does potassium belongs? [Level: Moderate]
Question 7:
Elements with 7 electrons in their outermost shell are known as:
(a) Inert gases
(d) Alkali metals [Level: Easy]
Question 8:
Which of the following statement is correct with respect to the elements – Li, Be, B, C, N, O, F, Ne.
(a) Each element belongs to the same group
(b) Valency of each element is same
(c) Each element belongs to the same period
(d) They are all metals [Level: Moderate]
Question 9:
All the members of group 14 have how many electrons in their outermost shell?
(a) 7
(b) 3
(d) 2 [Level: Moderate]
Question 10:
How many elements are placed in 7th period of periodic table?
(a) 18
(c) 64
(d) 26 [Level: Easy]
Question 11:
In the periodic table, elements of same period have same:
(a) number of valence electrons
(b) mass number
(c) atomic number
(d) number of shells [Level: Moderate]
Question 12:
Which among the following is a metal in period 3 having electronic configuration 2,8,3?
(a) Beryllium
(d) Potassium [Level: Moderate]
Question 13:
Which among the following period has elements from atomic no. 19 to 36?
(a) Period 3
(b) Period 2
(c) Period 5
(d) Period 4 [Level: Moderate]
Question 14:
Which among the following is group number of element having electronic configuration 2, 8, 8, 2?
(b) 1
(d) 4 [Level: Difficult]
Question 15:
Which among the following groups is most electronegative?
(a) Group 2
(b) Group 15
(d) Group 16 [Level: Difficult]
Question 16:
Column B |
|
Elements short by 1 electron in octet |
Transition elements |
Highly reactive metals |
Noble gases |
Non-reactive elements |
Alkali metals |
Elements of group 3 to 11 |
Actinides |
Radioactive elements |
Halogens |
[Level: Moderate]
Question 17:
Name at least 5 elements of group 18. [Level: Easy]
Question 18:
Which among the following group contains highly electronegative reactive non-metals including chlorine?
(a) Group 14
(c) Group 13
(d) Group 16 [Level: Moderate]
Question 19:
State any 2 merits of Mendeleev’s periodic table. [Level: Easy]
Question 20:
Give atleast 3 examples of dobereiner’s triad. [Level: Easy]
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All About Daily Practice Problems on ICSE 9 Chemistry The Periodic Table NCERT Chapter 5
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