Advertisements
Advertisements
प्रश्न
Formula of ion of A is A2+. Element A probably belongs to ______ group.
उत्तर
Formula of ion of A is A2+. Element A probably belongs to 2nd group.
APPEARS IN
संबंधित प्रश्न
The atomic numbers of three elements A, B and C are 12, 18 and 20 respectively. State, giving reason, which two elements will show similar properties.
How do the atomic size and metallic character of elements vary as we move :-
(a) down a group and
(b) from left to right in a period
Fill in the blank in the following statement:
The tendency to gain an electron ............... on moving down in a group of the periodic table.
In terms of electronic configurations, explain the variation in the size of the atoms of the elements belonging to the same period and same group ?
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
Why fluorine has higher E.N. than chorine?
Explain
Size of atom changes when it loses or gain electron
The following questions refer to the Periodic Table.
What is the common feature of the electronic configurations of the elements in group 7?
Answer the following question:
State the four blocks of the modern periodic table based on the electronic configuration of elements.
Give a reason for the following:
A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.
