Identify the element that does NOT belong to Period 6 of the Modern Periodic Table.

The correct answer is Silicon. Key Points

• Period 6 of the Modern Periodic Table consists of elements from atomic number 55 (cesium) to atomic number 86 (radon).
• Silicon belongs to Period 3 of the Periodic Table and is not part of Period 6.
• Tungsten (atomic number 74), Rhenium (atomic number 75), and Platinum (atomic number 78) all belong to Period 6 of the Periodic Table.
• Tungsten is a transition metal that is commonly used in the manufacture of electrical contacts, filaments, and X-ray tubes.
• Rhenium is a rare and expensive metal that is used in high-temperature superalloys, as well as in the manufacture of electrical contacts and filaments.
• Platinum is a precious metal that is used in jewelry, as well as in the manufacture of catalytic converters, electrical contacts, and laboratory equipment.

Additional Information

• One type of chemical element is silicon.
• Its atomic number is 14 and its symbol is Si.
• It has a blue-grey metallic sheen and is a hard, brittle crystalline solid.
• It is a semiconductor and tetravalent metalloid.
• It belongs to the periodic table's group 14.