Advertisements
Advertisements
प्रश्न
In which part of a group would you separately expect the elements to have the greatest metallic character
Advertisements
उत्तर १
The greatest metallic character is expected by elements in the lowest part of the group, as the metallic (electropositive) character increases on going down in a group.
उत्तर २
The greatest metallic character can be expected at the bottom of the group.
APPEARS IN
संबंधित प्रश्न
Study the following table in which positions of six elements A, B, C, D, E and F are shown as they are in the modern periodic table:
|
Group→
Period↓ |
1
|
2
|
3-12
|
13
|
14
|
15
|
16
|
17
|
18
|
| 2 | A | B | C | ||||||
| 3 | D | E | F |
On the basis of the above table, answer the following questions:-
(i) Name the element which forms only covalent compounds.
(ii) Name the element which is a metal with valency three.
(iii) Name the element which is a non-metal with valency three.
(iv) Out of D and E, which is bigger in size and why?
(v) Write the common name for the family to which the elements C and F belong.
How many groups and periods are there in the modern periodic table?
How do atomic structures (electron arrangements) change in a period with increase in atomic numbers from left to right?
How does Chemical reactivity of elements change on going from left to right in a period of the periodic table?
Give example in support of your answer.
In which part of a group would you separately expect the elements to have the largest atomic size?
The atomic number of an element is 20. In modern periodic table, this element is placed:
(a) 2nd period
(b) 4th period
(c) 3rd period
(d) 1st period
The following questions refer to the Periodic Table.
Name the first and last element in period 2.
An element Z has atomic number 16. Answer the following
(a) State the period and group to which Z belongs
(b) Is Z a metal or a non-metal?
(c) State the formula between Z and hydrogen.
(d) what kind of a compund is this?
The elements of one short period of the periodic table are given below in order from left to right:
| Li | Be | B | C | O | F | Ne |
To which period do these elements belong?
Name or state following with reference to the element of the first three periods of the periodic table.
A non-metal in period 2 having electronic configuration 2, 6.
