According to IUPAC recommendations, the number of groups in the long form of the periodic table is :-
Modern periodic law was proposed by:
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The least metallic element of group 1 is :-
In the third period of the periodic table the element having smallest size is
Which of the following statement is not correct about the trends when going from left to right across the periodic table?
The law of octaves was proposed by :-
The number of periods in the long form of the periodic table is :-
Which of the following has the maximum non-metallic character ?
Which of the following sets of elements do not belong to the same group ?
Which of the following has lowest number of electrons in the valence shell ?
An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.
Which of the following has largest atomic size ?
Which of the following belongs to group 18 ?
What is the basis of long form of the periodic table ?
Which one is more metallic element ?
Element X forms a chloride with the formula XCl2, Which is a solid with a high metingpoint, X would most likely be in the same group of the periodic table as :-
How many groups and periods are present in the modern periodic table?
Electropositive character of elements in a period ___________ from left to right
How does the valency vary in going down a group?
What is the nature of an element having atomic number 20?
Which group elements are called transition metals?
What property of all elements in the column of the periodic table as fluorine have in common?
Which group of periodic table does Ge belongs to?
An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is.
In Newlands law of octaves elements are arranged in order of
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146 videos|358 docs|249 tests
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