d - block and f - block Elements
Identify the incorrect statement.
Cobalt (60) isotope is used in the treatment of:
Cobalt -60 $$ \displaystyle (\gamma)+ $$ gold - 198 isotope is used to check cancer and tumor treatment. Cobalt -50 $$ \displaystyle (\gamma)$$ isotope is used to check cancer growth.
Identify the incorrect statement.
The catalystic activity of transition metals and their compounds is ascribed mainly to:
The basic character of the transition metal monoxides follows the order: (Atomic nos. Ti = 22, V = 23, Cr = 24, Fe = 26)
Technetium, the element below manganese in the Periodic Table, would be expected to have high values for its: $$(I)$$ melting point $$(II)$$ boiling point $$(III)$$ density
Oxygen is absorbed by molten silver, which is evolved on cooling and the silver particles are scattered. This phenomenon is known as:
Transition metals and their compounds catalyses reactions because:
Catalytic activity of transition metals depends on:
The magnetic moment of a transition metal ion is found to be $$3.87$$ Bohr Magneton (BM). The number of unpaired electrons present in it is:
Corrosive sublimate is:
Which of the following is arranged in order of increasing melting point ?