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Iron, Cobalt and Nickel possess nearly same size. Why?

Iron, Cobalt and Nickel possess nearly same size.
Why?

Grade:11

3 Answers

raghu KAN k
25 Points
8 years ago

ferrous cobalt and nickel are having atomic numbers 26,27,28 respectively. so they are arranged side by side in the periodic table. if elements has nearly same atomic number then they would have nearly same size.

vempally muthyagoud
33 Points
8 years ago

because of that three are the metals.

G Ashwin -
24 Points
8 years ago

They have nearly same size as they are in the same period which means that they have same no. of shells. Moreover they come next to each other i.e 26,27,28 which makes the no. of electrons in valence shell almost same. so they have same size

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