Advertisements
Advertisements
प्रश्न
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
उत्तर
(a) The atomic size and metallic character of elements increase down a group.
(b) The atomic size and metallic character of elements decrease from left to right in a period.
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.
Na, Mg and Al are the elements of the same period of Modern Periodic Table having, one, two and three valence electrons respectively. Which of these elements (i) has the largest atomic radius, (ii) is least reactive? Justify your answer stating reason for each case.
How do atomic structures (electron arrangements) change in a period with increase in atomic numbers from left to right?
How does the tendency to gain electrons change as we go down in group 17 of the periodic table? Why does it change this way?
Why sodium element of group 1 and chlorine element of group 17 both have valency 1?
Name the element which has the electronic configuration 2, 8, 3?
Name the elements in period 1.
Name and state the following with reference to the elements of the first three periods of the periodic table.
Metalloid in Period 3.
Answer the following question:
State the four blocks of the modern periodic table based on the electronic configuration of elements.
Electron Affinity is maximum in ______.
