d and f BLOCK ELEMENTS

What makes transition elements distinct from s and p block elements?

• Higher atomic masses
• Greater reactivity
• The presence of partly filled d or f orbitals
• Being all metals

Why are Zinc, Cadmium, and Mercury generally not considered transition metals by the strict IUPAC definition?

• They are liquids at room temperature
• They are too reactive
• They have a full d10 configuration in their ground state and common oxidation states
• They do not form alloys

According to IUPAC, what is the defining characteristic of a transition metal?

• Being solid at room temperature
• Having an incomplete d subshell in the neutral atom or its ions
• Being able to form colored compounds
• Having high melting points

What was the original reason for naming d-block elements 'transition metals'?

• They had transitional physical states
• Their chemical properties were transitional between s and p-block elements
• They were discovered during a transitional period in science
• They transition between metals and nonmetals

What are the two series of inner transition metals called?

• Lanthanoids and actinoids
• Transition metals and post-transition metals
• Alkali metals and alkaline earth metals
• Halogens and noble gases