Question

which of the following is not member of first transition series​

Answer 1

Which of the following is not an element of the first transition series?

The options are:

a) Fe b) Co c) Ni d) Ag

Explanation:

• From the given options, Ag(Silver) does not belong to the first transition series.

• The metals are classified into three transition series according to the electronic structure.

• Fe is the symbol of the metal Iron

• Co is the symbol of the metal Cobalt

• Ni is the symbol of the metal Nickel.

• Ag is the symbol of the metal Silver.

• Iron, Cobalt, and Nickel belong to the first transition series.

• Silver(Ag) alone belongs to the second transition series.

• The atomic number of Silver is 47, and its atomic mass value is 107.8682.

Answer 2

Question:

The complete question are:

which of the following is not member of first transition series​

a) Fe b) Co c) Ni d) Ag

Answer:

The option d) Ag (silver) is correct option

Explanation:

Ag(Silver) does not belong to the first transition series.

• The metals are classified into three transition series according to the electronic structure.
• Silver(Ag) alone belongs to the second transition series.
• The atomic number of Silver is 47, and its atomic mass value is 107.8682.
• Electronic config. [Kr] 4d10 5s1
• The 2nd transition series consists of elements from yttrium, Y (Z = 39) to cadmium, Cd (Z = 48)
• i.e., yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver and cadmium.
• This series involves the filling of 4d-orbitals.

Fe is the symbol of the metal Iron

Co is the symbol of the metal Cobalt

Ni is the symbol of the metal Nickel.

Ag is the symbol of the metal Silver.

Iron, Cobalt, and Nickel belong to the first transition series.

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