| 1. | Where would you locate the element with electronic configuration 2, 8 in the Modem Periodic Table ? | |
|
Group 10
|
||
|
Group 2
|
||
|
Group 8
|
||
|
Group 18
|
||
View Answer
Discuss in Forum
Report Question| 2. | Which one of the following does not increase while moving down the group of the periodic table ? | |
|
Valence electrons
|
||
|
Metallic character
|
||
|
Atomic radius
|
||
|
Number of shells in an element
|
||
| 3. | Which of the following gives the correct increasing order of the atomic radii of O, F and N ? | |
|
O, N, F
|
||
|
F, O, N
|
||
|
N, F, O
|
||
|
O, F, N
|
||
| 4. | Upto which element, the Law of Octaves was found to be applicable ? | |
|
Potassium
|
||
|
Cobalt
|
||
|
Calcium
|
||
|
Oxygen
|
||
| 5. | Which of the given elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively belong to the same period ? | |
|
B, D, E
|
||
|
A, D, E
|
||
|
A, B, C
|
||
|
B, C, D
|
||
| 6. | Which one of the following elements exhibit maximum number of valence electrons ? | |
|
P
|
||
|
Al
|
||
|
Si
|
||
|
Na
|
||
| 7. | Which among the following elements has the largest atomic radii ? | |
|
Mg
|
||
|
Ca
|
||
|
K
|
||
|
Na
|
||
| 8. | 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 ? | |
|
Non-metal
|
||
|
Left-hand side element
|
||
|
Metalloid
|
||
|
Metal
|
||
| 9. | Which of the following is the outermost shell for elements of period 2 ? | |
|
N shell
|
||
|
M shell
|
||
|
L shell
|
||
|
K shell
|
||
| 10. | In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later ? | |
|
Silicon
|
||
|
Oxygen
|
||
|
Chlorine
|
||
|
Germanium
|
||