Periodic Classification of Elements
The type of elements present in group 3 to 12[IB to VIIB and VIII] are :
Which of the following is a transition element?
The transition elements are those elements having a partially filled d subshell in any common oxidation state. The term "transition elements" most commonly refers to the d-block transition elements. The 2B elements zinc, cadmium and mercury do not strictly meet the defining properties, but are usually included with the transition elements because of their similar properties.
So here $$Ni$$ is transition element.
The type of elements present in group 3 to 12[IB to VIIB and VIII] are :
Which of the following sets of atomic numbers corresponds to the atomic numbers of inert gases belonging to periods which contain 4d and 5d transition series?
An element having electronic configuration $$ [Ar] 3d^24s^2 $$ belongs to:
Give the formula and valency of chromate.
Which give coloured carbonate precipitate?
Which of the following is not correct statement for periodic classification of elements?
Indicate the wrong statement on the basis of the periodic table.
There are many elements in the periodic table which exhibit variable valency. This is a particular characteristic of :
Give the formula and valency of chromate.
What are transition elements ? Why are they so called ? Name the different transitions series.