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4
An element A has atomic number 7. It will have properties similar to the element with atomic number
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4
In C, N, O and F the electronegativity
B. decreases from C to O and then increases to F
C. increases from O to C and then decreases to F
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4
Which of the following did not find a place in Mendeleef's periodic table?
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4
In a Lother Meyer curve sodium occurs at
C. some point on the curve
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4
Modem Periodic Law was given by
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4
Which of the following has maximum ionisation energy?
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4
The first atom with maximum number of d-electrons is with atomic number
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4
Which of the following has maximum ionisation energy ?
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4
Which of the following has minimum ionisation energy?
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4
Which of the following elements have maximum electronegativity?
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An element has atomic number 2. It belongs to
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Which of the following is not an s-block element?
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The smallest ion amongst the following
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Elements in the same vertical column has same
A. valence shell electronic configuration
B. electronic configuration
C. atomic number of isotopes
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Which of the following atoms is paramagnetic?
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In the Mendeleef's periodic table properties of the elements are the periodic function of their
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A metal may have atomic number
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Which of the following species have minimum size?
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3.Atomic number of an element X is 34, it belongs to
D. IV period, VII A group
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IV Period has.........elements.
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The heaviest element is
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Elements whose atoms have incompletely filled penultimate energy levels are known as
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Which of the following has maximum electron affinity ?
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Which of the following has the maximum size?
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In the periodic table on moving from left to right across a period, the metallic character of elements
C. increases and decreases
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The general electronic configuration of s-block elements is
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The successive ionisation energies of an atom of an element A are:
, , respectively. The element is most likely to be
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4
An atom of an element has electronic configuration , the element belongs to block
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4
The pair of elements that exhibit diagonal relationship is
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Arrange the following set of atoms in the increasing order of electron affinity: F, Sr, Ge, Se