List all the metals of the first series of transition metals in order of increasing atomic number How does the atomic radius of the elements vary across the series ? Explain

Md Ariful Islam

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(a) List of the first series of transition metals in increasing atomic number;

Sc - 21

Ti-22

V-23

Cr-24

Mn-25

Fe-26

Co -27

Ni-28

Cu-29

Zn -30

(b) How atomic radius varies across the series.

  • Atomic radius decreases from Sc to Zn
  • This is because of an increase in atomic number (number of protons ) in the nucleus/nuclear charge. Increased nuclear charge pulls the electron cloud more strongly towards the nucleus making the atoms with the same number of shells shrink across the series.
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