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What is the correct answer?

4

The first atom with maximum number of d-electrons is with atomic number

A. 27

B. 46

C. 36

D. 29

Correct Answer :

D. 29


Related Questions

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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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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

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

A. 18

B. 36

C. 8

D. 9

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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

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 have negative electron affinity?

A. Kr

B. U

C. Y

D. Pb

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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 elements is not liquid at room temperature, i.e., 25°C?

A. Hg

B. Br

C. Cl

D. Cs

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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 conform both cation and anion?

A. I

B. Cl

C. K

D. F

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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

The successive ionisation energies of an atom of an element A are:
900 kJ mole1, 1757 kJ mole-1, 14850 kJ mole-1 respectively. The element is most likely to be

A. B

B. Be

C. F

D. Ba

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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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Which of the following has highest ionisation energy?

A. Be

B. Cl

C. Ba

D. N

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Which of the following has minimum ionisation energy

A. Ca

B. In

C. Te

D. Rb

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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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Which of the following has maximum ionisation energy ?

A. Li

B. Be

C. C

D. B

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4

Modem Periodic Law was given by

A. Joule

B. Moseley

C. Klechkosky

D. Meyer

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The lightest metal is

A. Li

B. Pb

C. Na

D. Al

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The differentiating electron enters in the penultimate energy level in the case of

A. s block ele.

B. p block ele.

C. d block ele.

D. f block ele.

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4

Arrange the following set of atoms in the order of increasing atomic radius : F, Cl, C, O

A. F, Cl, O, C

B. C. O, F, Cl

C. O. C, F, Cl

D. F, O, C, Cl

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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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Which of the following has maximum electron affinity ?

A. Cl

B. Br

C. I

D. F

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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 first atom with maximum number of d-electrons is with atomic number

A. 27

B. 46

C. 36

D. 29

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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

A metal may have atomic number

A. 85

B. 32

C. 38

D. 2

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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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Which of the following has maximum ionisation energy?

A. Li

B. Ba

C. Cl

D. Be

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3.Atomic number of an element X is 34, it belongs to

A. IV period, VIA group

B. IV period, IIA group

C. V period, III B group

D. IV period, VII A group