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प्रश्न
p-block is composed of groups 1 and 2.
पर्याय
Right
Wrong
उत्तर
p-block is composed of groups 1 and 2- Wrong
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संबंधित प्रश्न
How does the metallic character of elements in Modern Periodic Table vary on moving from left to right in a period, and (ii) down a group?Give reason to justify your answer.
Write the merits of the modern periodic table over Mendeleev’s Periodic table
State modern periodic law.
Fill in the following blank with suitable word:
Group 1 elements are called ...............
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
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?
Give alongside is a part of the periodic table :
As we move horizontally from left to right:
| Li | Be | B | C | N | O | F | |
| Na | Mg | Al | Si | P | S | Cl |
(i) What happens to the metallic character of the elements?
(ii) What happens to the atomic size?
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
Explain why All the elements of a group have similar chemical properties.
State how the valency of elements varies in a period of the periodic table?
On the basis of electronic configuration, how will you identify the first element of a period?
What are the merits of the modern periodic table of elements?
In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group.
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?
What are the periods in a periodic table? Give two characteristics of each.
The following diagram shows a part of the periodic table in which the elements are arranged according to their atomic numbers. (The letters given here not the chemical symbols of the elements):
| a 3 |
b 4 |
c 5 |
d 6 |
e 7 |
f 8 |
g 9 |
h 10 |
|
| i 11 |
j 12 |
k 13 |
l 14 |
m 15 |
n 16 |
o 17 |
p 18 |
(i) Which element has a bigger atom, a or f?
(ii) Which element has a higher valency, k or o?
(iii) Which element is more metallic i or k?
(iv) Which element is more non-metallic, d or g?
(v) Select a latter which represents a metal of valency 2.
(vi) Select a letter which represents a non-metal of valency 2.
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.
Name the type of elements which have outermost shell complete.
Arrange the elements of second and third periods in increasing order of their atomic size.
Third Period.
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Name the noble gas with 3 shells.
What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?
Name an element of group 18 which can form compounds.
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the symbol and valency of the following element and radical.
Calcium
Give the symbol and valency of the following element and radical.
Oxygen [Oxide]
Give the chemical formula of sodium nitrate
State the number of elements in Period 2 of the Periodic Table.
How were elements arranged in the long form of the periodic table or the Modern Periodic Table?
Group 13 to 18 : p block : : _______ : d block
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
The longest period of the Modern Periodic Table is period.
Which of the following is the outermost shell for elements of period 2?
Group 16 elements are collectively called as ______.
An element has the atomic number 12.
- Write the electric configuration.
- To which group and period does it belong.
An element has 2 electrons in its N shell.
State its position in periodic table.
Match the atomic number with the following:
An element of group 2.
