Advertisements
Advertisements
प्रश्न
Name the type of elements which have outermost shell incomplete.
Advertisements
उत्तर
Representative elements
APPEARS IN
संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
|
Group 16
|
Group 17
|
|
−
|
−
|
|
−
|
A
|
|
−
|
−
|
|
B
|
C
|
(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
How many rows and columns are there in the modern periodic table?
Give two example of group 17 elements.
What are the periods in a periodic table? Give two characteristics of each.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What will be the formula of its phosphate?
Name the noble gas with 3 shells.
An element E has following electronic configuration:
|
K |
L |
M |
|
2 |
8 |
6 |
(a) To which group of the periodic table does element E belong?
(b) To which period of the periodic table does element E belong?
(c) State the number of valence electrons present in element E.
(d) State the valency of the element E.
Name an element of group 18 which can form compounds.
Give the symbol and valency of the following element and radical.
Sulphur [Sulphide]
p-block is composed of groups 1 and 2.
