Occurance of Group 16 Elements - P-Block Elements - Chemistry Class 12

TL;DR

This video discusses the occurrence of group 16 elements, including oxygen, sulfur, and polonium, their abundance, and where they can be found.

Transcript

click the bell icon to get latest videos from Akira headphones in the previous lecture we have discussed about watering 60 elements as well as we have also discuss about the electronic configuration that is the general electronic configuration and now in this topic we are going to talk about the occurrence of group 16 elements so where does this gr... Read More

Key Insights

• 📔 Oxygen is the most abundant element on Earth, covering a significant portion of the Earth's crust and atmosphere.
• 🛩️ Sulfur is present in smaller quantities but can be found in sulfides and sulfates.
• ☢️ Polonium is a rare, radioactive element that is a decay product of uranium and thorium.
• 👥 The occurrence of group 16 elements varies in terms of abundance and radioactive properties.
• ❓ Sulfur can be found in minerals such as pyrite and gypsum.
• 🈸 Oxygen and sulfur have widespread applications in various industries.
• 🧑‍🔬 Marie Curie, a renowned scientist, discovered polonium.

Questions & Answers

Q: What is the abundance of oxygen on Earth?

Oxygen is the most abundant element on Earth, covering around 46.6% of the Earth's crust and a significant portion of the atmosphere.

Q: Where can sulfur be found?

Sulfur is present in smaller quantities in the Earth's crust, around 0.03 to 0.1%, and can be found in sulfides and sulfates. Examples include pyrite (FeS2) and gypsum (CaSO4·2H2O).

Q: How was polonium discovered?

Polonium was discovered by Marie Curie and named after her native country, Poland. It is a radioactive element that is a decay product of uranium and thorium.

Q: Is polonium abundant in the Earth's crust?

No, polonium is very rare in the Earth's crust. It is present in trace amounts as a decay product of uranium and thorium.

Summary & Key Takeaways

• Oxygen is the most abundant element on Earth, covering around 46.6% of the Earth's crust and the majority of the atmosphere.

• Sulfur is present in smaller quantities, around 0.03 to 0.1% of the Earth's crust, and can be found in sulfides and sulfates.

• Polonium is a radioactive element, discovered by Marie Curie, and is a decay product of uranium and thorium. It is rare in the Earth's crust.