Question

which are placed in groups 3 to 12 in the middle of the periodic table​

Answer 1

Answer:

The elements in groups 1B through 8B (also known as 3 through 12) are called the transition metals. They are called d block elements because the electrons being added in this block of elements are being added to the d orbital. They are placed between metals and non-metals i.e. in center in periodic table.

Answer 2

Answer:

The elements which are placed in groups 3 to 12 in the middle of the periodic table are called as transition elements..

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