In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue explores how the periodic table of elements ... This big block in the middle are metals ...

The same thing explains why gold is gold ... To account for this, most periodic tables hive off the elements making up this f-block, putting it below the table, leaving a gap in group 3.

For example, they explain the color of gold, which sets it apart from the colorless elements surrounding it in the d-orbital block of the periodic table—such as silver, which lies directly above ...

Scientists travelled deep into the ocean, dug around salt mines, scrutinized gold ... the periodic table in a different way. The table was originally imagined as describing the building blocks ...

It could be that the properties of the SHEs do not match those of elements above them in the periodic table, says Michael Block ... detectors made usually with gold or quartz surfaces.

Affixed to the wall in a concrete-block corridor known as Cave 1 in ... show up even in naturally occurring elements of the periodic table. Gold is yellowish because relativistic effects shrink ...

Elements are the building blocks for everything in the ... Most occur naturally such as oxygen, gold, copper, carbon and helium. The periodic table is a way of arranging all of these chemical ...