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प्रश्न
The groups 1 and 2 constitute the _______ block.
पर्याय
s
p
d
q
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उत्तर
The groups 1 and 2 constitute the s block.
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संबंधित प्रश्न
How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.
What is meant by a group, in a periodic table?
How were the positions of isotopes of an element decided in the modern periodic table?
On which side of the periodic table will you find metals?
On which side of the periodic table will you find non-metals?
Which element has two shells, both of which are completely filled with electrons?
How does the chemical reactivity of the halogens vary on going in group 17 of the periodic table?
What is a period in a periodic table?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
An element X belongs to 3rd period and group 2 of the periodic table. State:
(a) number of valence electrons
(b) valency
(c) metal or non-metal
(d) name of the element
Name two elements in Alkaline earth metals.
Name the type of elements which have one electron short of octet.
State its position in the periodic table?
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
Name an alkali metal in period 3 and halogen in period 2.
Write a short note.
Structure of the modern periodic table.
How many periods and groups are there in the modern periodic table?
What is the number of elements in the 1st period?
Two elements P and Q belong to the same period of the modern periodic table and are in group 1 and group 2, respectively. Compare the following characteristics in the tabular form.
- Number of electrons in their atoms
- Their tendency to lose electrons
- Their metallic characters
- Formation of their oxides
- Formulae of their chlorides
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Give the symbol and valency of the following element and radical.
Nitrogen [Nitride]
Give the chemical formula of sodium nitrate
Give the chemical formula of sodium bicarbonate
Give the chemical formula of ammonium sulphate
Which of the following statements about the Modern periodic table is correct?
The modern periodic table is divided into which blocks?
p-block is composed of groups 1 and 2.
Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.
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| 2 | ----- | A |
| 3 | B | ----- |
| 4 | ----- | C |
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A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
Select the appropriate options and complete the following paragraph:
(metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block).
On the basis of electronic configuration, elements in the modern periodic table are classified Into ______ blocks. Groups 1 and 2 elements are included in ______ and all these elements are metals. (except Hydrogen). Group 13 to 18 elements are included in ______. This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in ______ and all the elements are ______ elements shown at the bottom of the periodic table i.e. Lanthanides and Actinides constitute ______ and all these elements are metals.
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State its position in periodic table.
Answer the following in respect of element \[\ce{_16^32S}\].
To which group and period does it belong?
