Advertisements
Advertisements
प्रश्न
Find the correlation:
Group 13 to 18 : p block : : ______ : d block
Advertisements
उत्तर
Group 13 to 18 : p block : : Group 3 to 12 : d block
Explanation:
The d-block in the Modern Periodic Table consists of Groups 3 to 12. These elements are referred to as "transition elements" because they act as a bridge between the highly electropositive s-block metals and the electronegative p-block non-metals. In these elements, the last electron enters the d-orbital of the penultimate shell.
APPEARS IN
संबंधित प्रश्न
In the Modern Periodic Table, which are the metals among the first ten elements?
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
Why do all the elements of the same group have similar properties?
Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.
Fill in the following blank with suitable word:
Group 18 elements are called ...............
What is meant by a period, in a periodic table?
Give two example of group 18 elements.
How were the positions of isotopes of an element decided in the modern periodic table?
Name the scientist who prepared modern periodic table.
The atomic particle whose number in the atoms of an element always remains the same and which forms the real basis for the modern classification of elements is:
(a) electron
(b) proton
(c) neutron
(d) meson
On the basis of electronic configuration, how will you identify the first element of a period?
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?
(i) A and D
(ii) C and D
(iii) A and B
(iv) B and C
(v) A and C
Correct the statement.
Copper and zinc are representative elements.
State its position in the periodic table?
Name an alkali metal in period 3 and halogen in period 2.
Name an element of group 18 which can form compounds.
The horizontal rows in a periodic table are called _____.
Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
Give the symbol and valency of the following element and radical.
Nitrate
Give the symbol and valency of the following element and radical.
Sulphate
Give the chemical formula of ammonium sulphate
State the number of elements in Period 1 of the Periodic Table.
What are the elements.
The groups 1 and 2 constitute the ______ block.
Which of the following statements about the Modern periodic table is correct?
In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.
Noble gases belong to______ group of the periodic table.
On moving from left to right in a period in the periodic table, the size of the atom ______
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
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 |
Write the molecular formula of the compound formed by the combination:
E and B
Explain giving reason why although the nuclear charge in atoms increases in moving from left to right in a period as well as in moving from top to bottom in a group in the Modern periodic table, but the size of the atoms does not vary similarly in both situations.
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
Match the atomic number with the following:
A rare gas.
