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प्रश्न
Distinguish between:
s-block - p-block
उत्तर
| s-block | p-block | |
| 1. | The s-block contains groups 1 and 2. | The p-block contains groups 13 to 18. |
| 2. | All the elements of s-block are metals. | p-Block elements include metals, nonmetals and metalloids. |
| 3. | s-block elements are placed to the extreme left side in the modern periodic table. | p-block elements are placed to the extreme right side in the modern periodic table. |
| 4. | There is no zig-zag line to separate different types of elements in the s-block of the periodic table. | A zig-zag line can be drawn to separate different types of elements (metals, metalloids and nonmetals) in the p-block of the periodic table. |
संबंधित प्रश्न
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
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.
Give two example of group 17 elements.
How were the positions of isotopes of an element decided in the modern periodic table?
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?
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
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
Explain why All the elements of a period have different chemical properties.
What is a period in a periodic table?
What is the fundamental difference in the electron configurations between the group 1 and group 2 elements?
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
What is the number of elements is 1st period the modern 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?
Name the type of elements which have two electrons in the outermost orbit.
How will the tendency to gain electrons change as we go from left to right across a period? Why?
The horizontal rows in a periodic table are called _____.
Give the symbol and valency of the following element and radical.
Potassium
Give the symbol and valency of the following element and radical.
Calcium
Give the symbol and valency of the following element and radical.
Magnesium
Give the symbol and valency of the following element and radical.
Sulphate
Which of the following statements about the Modern periodic table is correct?
The modern periodic table is divided into which blocks?
Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
Elements in the modern periodic table are arranged in ______groups and______ periods.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
The longest period of the Modern Periodic Table is period.
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Which of the following elements does not lose an electron easily?
Compare the radii of two species X and Y. Give reasons for your answer.
- X has 12 protons and 12 electrons
- Y has 12 protons and 10 electrons
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 variable valency and is a member of the Oxygen family (group 16).
Group 16 elements are collectively called as ______.
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
Define periods of modern periodic table.
Define groups of modern periodic table.
Give reason for the following:
Inert gases do not form ion.
