How many elements are there in 3d-series of first transition series ?

1 Answer

Answer :

 Ten elements from Sc (Z=21) to Zn (z=30) or {Sc –scandium to Zn (zinc)}   

Related questions

Description : In 3d-series, which two elements exhibit an anomalous configuration ?

Last Answer : Chromium Cr(Z=24) = [Ar] 4s1 3 d5 Copper(Cu)(Z=29)= [Ar] 4s1 3 d10 In transition series the element with maximum Ionization energy is. Zinc – due to stable electronic configuration

Description : How many elements are in the first and second inner transition series.name these series

Last Answer : Ans: 14 elements in each series. (i) Lanthanides series (ii) actinides series

Description : Magnetic moment of `X^(+3)` ion of 3d series is `sqrt(35)B.M` What is the atomic number of `X^(+3)`?

Last Answer : Magnetic moment of `X^(+3)` ion of 3d series is `sqrt(35)B.M` What is the atomic number of `X^(+3)`? A. 24 B. 25 C. 26 D. 27

Description : Explain the following : (i) Low spin octahedral complexes of nickel are not known. (ii) The π-complexes are known for transition elements only. (iii) CO is a stronger ligand than NTL, for many metals. -Chemistry

Last Answer : (i) The electronic configuration of Ni is [Ar] 3d8 4s2 which shows that it can only form two types of complexes i.e. square planar (dsp2) in presence of strong ligand and tetrahedral (sp3) in ... more splitting of d-orbitals and moreover it is also able to form π bond due to back bonding.

Description : f-block elements are also called (a) Alkali metals (b) Inner transition elements (c) Transition elements (d) Transuranic elements

Last Answer : Ans:(b)

Description : What are transition elements? (1) Elements whose two outermost shells are incomplete (2) Elements which possess properties of both, metals and non-metals (3) They have eight electrons in the outermost shell (4) Elements whose three outermost shells are incomplete

Last Answer : (1) Elements whose two outermost shells are incomplete

Description : What are transition elements?

Last Answer : Elements where electrons of their atoms occupy ultimate shells leaving penultimate (last but one)shells partially vacant are called transition elements. Electrons of these elements fill normally upto 1s, 2s, 2p, 3s and 3p. After 3p electrons occupy 4s leaving 3d orbitals vacant.

Description : Why do transition metals have higher I.E than s –block elements ?

Last Answer : Ans: It is due to smaller atomic size than s-block elements , effective nuclear charge is more , terefore I.E is high.

Description : Why ‘f block’ elements are called inner transition elements?

Last Answer : The elements for which f sub shells are filling are called the inner transition elements.

Description : Why are‘d block’ elements called outer transition elements?

Last Answer : ‘d block’ elements are called outer transition elements because they contain at most two electrons in their outer shell.

Description : What are transition elements?

Last Answer : Elements where electrons of their atoms occupy ultimate shells leaving penultimate (last but one)shells partially vacant are called transition elements. Electrons of these elements fill normally upto 1s, 2s, 2p, 3s and 3p. After 3p electrons occupy 4s leaving 3d orbitals vacant.

Description : Define Representative Elements & Transition Elements.

Last Answer : Ans : Representative Elements : The elements of Sub Group A are called Main Or representative Elements. The properties of these elements are represented by their valency electrons. Transition Elements : (1) The ... a) Outer Transition or d - block Elements b) Inner Transition or f - block Elements.

Description : The elements that have an outer electron configuration ns2 (read: n - s - 2) are called: w) halogens x) transition metals y) alkaline earths z) noble gases

Last Answer : ANSWER: Y -- ALKALINE EARTHS

Description : The most intense line in the Brackett series of the spectrum of atomic hydrogen is the transition :-

Last Answer : The most intense line in the Brackett series of the spectrum of atomic hydrogen is the transition :- A. `n_(2)=ooton_ ... (1)=4` D. `n_(2)=4ton_(1)=3`

Description : Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Last Answer : Answer : C

Description : Substitution of a thymine base by adenine in DNA is known as ((A) Transposition (B) Transition (C) Transversion (D) Frameshift mutation

Last Answer : Answer : C

Description : Substitution of an adenine base by guanine in DNA is known as (A) Transposition (B) Transition (C) Transversion (D) Frameshift mutation

Last Answer : Answer : B

Description : Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Last Answer : Answer : C

Description : Transition temperature of membranes may be affected by the following constituent of membranes: (A) Peripheral proteins (B) Integral proteins (C) Cholesterol (D) Oligosachharides

Last Answer : Answer : C

Description : The bond formed between the transition metal ion and ligand is ?

Last Answer : Co-ordination covalent bond Transitional metal Ions can form complex compounds by. By accepting the lone pair of electrons from ligand

Description : Why the transition metal ions or compounds exhibit color ?

Last Answer : Due to incomplete partially filled d- orbitals

Description : The World’s first 3D-printed house unveiled in: (a) USA (b) Germany (c) France (d) None of These

Last Answer : (c) France