Related Questions
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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
In a Lother Meyer curve sodium occurs at
C. some point on the curve
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4
Lother Meyer plotted a graph of
A. Atomic volume versus atomic number
B. Atomic radii versus atomic weight
C. Atomic weight versus mass number
D. Atomic volume versus atomic weight
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4
A metal may have atomic number
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In the Mendeleef's periodic table properties of the elements are the periodic function of their
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Which of the following have maximum size?
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Which of the following elements is not liquid at room temperature, i.e., 25°C?
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Second electron affinity of the elements is always
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An atom of an element has electronic configuration , the element belongs to block
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Law of octaves was given by
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The lightest metal is
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Elements belonging to the same period are
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Which of the following has highest ionisation energy?
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Which of the following has the maximum size?
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An element has atomic number 2. It belongs to
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Which of the following did not find a place in Mendeleef's periodic table?
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Which of the following conform both cation and anion?
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Ionisation energy of potassium is . The minimum frequency of a photon that can effect the ionisation is
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Which of the following has minimum ionisation energy?
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An element A has atomic number 7. It will have properties similar to the element with atomic number
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Which of the following has minimum ionisation energy
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, , and are isoelectronic, the order of increasing size is
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The element with no definite place in the periodic table is
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Elements whose atoms have incompletely filled penultimate and anti-penultimate energy levels are known as
A. Inner Transition elements
B. Representative elements
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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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Which of the following species have minimum size?
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The general electronic configuration of s-block elements is
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Which of the following has maximum ionisation energy?
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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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Arrange the following set of atoms in the order of increasing atomic radius : F, Cl, C, O