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प्रश्न
This question refers to elements of the periodic table with atomic numbers from 3 to 18. In the table below, some elements are shown by letters, even though the letters are not the usual symbols of the elements.
|
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
A |
B |
C |
D |
E |
F |
G |
H |
|
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
|
I |
J |
K |
L |
M |
N |
O |
P |
If A combines with F, what would be the formula of the resulting compound?
उत्तर
Li2O. A stands for lithium and F stands for oxygen. The valence of lithium is +1 and the valence of O is -2, i.e. A2F.
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संबंधित प्रश्न
This question refers to elements of the periodic table with atomic numbers from 3 to 18. In the table below, some elements are shown by letters, even though the letters are not the usual symbols of the elements.
|
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
A |
B |
C |
D |
E |
F |
G |
H |
|
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
|
I |
J |
K |
L |
M |
N |
O |
P |
Which of these is:
- a noble gas?
- a halogen?
- an alkali metal?
- an element with valency 4?
This question refers to elements of the periodic table with atomic numbers from 3 to 18. In the table below, some elements are shown by letters, even though the letters are not the usual symbols of the elements.
|
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
A |
B |
C |
D |
E |
F |
G |
H |
|
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
|
I |
J |
K |
L |
M |
N |
O |
P |
What is the electronic configuration of G?
Name and state the following with reference to the elements of the first three periods of the periodic table.
An electrovalent compound formed by an alkaline earth metal and a halogen.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Bridge elements of Period 3 of Group 1,2 and 3.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Alkali metal in period 3 dissolves in the water giving a strong alkali.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Typical elements of Groups 14 and 15.
