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4

Elements in the same vertical column has same

A. valence shell electronic configuration

B. electronic configuration

C. atomic number of isotopes

D. atomic size

Correct Answer :

A. valence shell electronic configuration


Related Questions

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4

Which of the following is an inert gas?

A. Oxygen

B. Nitrogen

C. Argon

D. Hydrogen

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4

Which of the following has maximum electron affinity ?

A. Cl

B. Br

C. I

D. F

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4

Which of the following elements have maximum electronegativity?

A. Cl

B. Br

C. F

D. C

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4

An element has atomic number 2. It belongs to

A. O group

B. III A group

C. VI group

D. II B group

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4

IV Period has.........elements.

A. 18

B. 36

C. 8

D. 9

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4

The general electronic configuration of s-block elements is

A. ns1-2

B. ns2p6

C. ns1

D. ns0 to2

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4

Which of the following has minimum ionisation energy

A. Ca

B. In

C. Te

D. Rb

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4

Elements belonging to the same period are

A. Si, N, O

B. Li, Be, Mg

C. Sc. Ti. V

D. Cu, Zn, Cd

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4

Arrange the following set of atoms in the increasing order of electron affinity: F, Sr, Ge, Se

A. Ge, Se, Sr. F

B. Se, Ge. Sr. F

C. Sr, Ge. Se. F

D. F, Sr, Ge. Se

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4

Which of the following have negative electron affinity?

A. Kr

B. U

C. Y

D. Pb

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4

In C, N, O and F the electronegativity

A. decreases from C to F

B. decreases from C to O and then increases to F

C. increases from O to C and then decreases to F

D. increases from C to F

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4

The element with no definite place in the periodic table is

A. At

B. H

C. N

D. Pt

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4

An atom of an element has electronic configuration (Ar) 4s23d5, the element belongs to block

A. s

B. p

C. f

D. d

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4

Which of the following conform both cation and anion?

A. I

B. Cl

C. K

D. F

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4

Which of the following did not find a place in Mendeleef's periodic table?

A. Fr

B. Na

C. Ce

D. CI

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4

Elements whose atoms have incompletely filled penultimate and anti-penultimate energy levels are known as

A. Inner Transition elements

B. Representative elements

C. Inert elements

D. Noble gases

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4

The smallest ion amongst the following

A. Si+++1

B. K+

C. At1+1

D. Mg+1

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4

Which of the following has minimum ionisation energy?

A. F

B. Cl

C. Br

D. I

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4

Elements whose atoms have incompletely filled penultimate energy levels are known as

A. s-block elements

B. p-block elements

C. d-block elements

D. inert gases

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4

Which of the following atoms is paramagnetic?

A. Zn

B. N

C. Ca

D. Sr

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4

The pair of elements that exhibit diagonal relationship is

A. Li-Mg

B. Al-Na

C. Ne-Ar

D. Si-P

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4

On moving across a period from left to right the ionisation energy increases because

A. value of principal quantum number increases

B. effective nuclear charge increases

C. atomic size increases

D. nuclear charge increases

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4

Law of octaves was given by

A. Meyer

B. Mendeleev

C. Moseley

D. Newland

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4

Which of the following elements is not liquid at room temperature, i.e., 25°C?

A. Hg

B. Br

C. Cl

D. Cs

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4

Which of the following has the maximum size?

A. Al-

B. Ne

C. Na+

D. F-

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4

Which of the following species have minimum size?

A. Br-

B. S-2

C. Ne

D. K+

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4

Which of the following is not an s-block element?

A. Ru

B. Be

C. Fr

D. Rb

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4

In the Mendeleef's periodic table properties of the elements are the periodic function of their

A. atomic weight

B. atomic number

C. atomic volume

D. none of these

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4

In a Lother Meyer curve sodium occurs at

A. bottom

B. peak

C. some point on the curve

D. middle of the curve

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4

An element A has atomic number 7. It will have properties similar to the element with atomic number

A. 85

B. 57

C. 26

D. 51