Advertisements
Advertisements
प्रश्न
Moving down in the second group, number of valence electrons ______.
Advertisements
उत्तर
Moving down in the second group, the number of valence electrons remains the same.
APPEARS IN
संबंधित प्रश्न
Which element has a total of two shells, with three electrons in its valence shell?
Classify the following elements into metals, non-metals and metalliods
As, C, Hg, Mg, S, Si
Why fluorine has higher E.N. than chorine?
Fill in the blank:
on moving from right to left in the second period, the number of valence electrons……….
K, Pb, Ca, Zn (In the increasing order of the reactivity)
Fill in the blank
Oxidising property ________from fluroine to iodine because the power to accpet electron decreases.
Select the correct answer
Identify the metalloid
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.
State the following:
The group to which the element with an electronic configuration of 2, 8, 2 belongs.
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)
