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प्रश्न
An element A has 2 electrons in its fourth shell. State:
position in the periodic table
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उत्तर
Position in the periodic table is group 2 period 4
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संबंधित प्रश्न
How does the electropositive character of elements change on going down in a group of the periodic table?
Where would you locate the element with electronic configuration 2, 8 in the modern periodic table?
The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19 and 20 respectively. The element having the largest atomic radius is:
(a) Mg
(b) Na
(c) K
(d) Ca
State the valency of the elements of periods 3 and write the formula of their oxides.
State the trends in physical properties on moving down the group. Give an example to illustrate.
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Name and state the following with reference to the elements of the first three periods of the periodic table.
Valency of elements in Group 14 and 15.
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 which contains highly electropositive metals including sodium.
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)
