Which of the following elements is malleable and a good conductor of heat and electricity?
Barium (Ba)
Barium (Ba) is malleable and a good conductor of heat and electricity, being a reactive alkaline earth metal.
Iodine, sulfur and neon are non-metals or noble gases, lacking malleability and good electrical conductivity.
Hence, Barium (Ba) is the correct answer.
In the context of periodicity, elements in the same group tend to display similar chemical properties. Which primary factor is responsible for this similarity among group members?
When moving down a group in the Modern Periodic Table, what happens to the number of valence electrons?
Whose Periodic Law was modified and adopted the Atomic number as the basis of Modern Periodic Table?