Chalcogens and Properties of Oxygen and Sulfur

This set of flashcards covers key concepts and properties related to chalcogens, oxygen, and sulfur as highlighted in the lecture notes.

What group on the periodic table are the chalcogens found in?

Group 16, also known as the oxygen group.

What is the atomic number of Oxygen?

8

What is the standard state of sulfur at room temperature?

Solid, pale yellow color.

What does the term 'chalcogen' mean?

Ore-former; many metal ores contain oxygen or sulfur.

Name a property of oxygen.

Colorless, odorless, tasteless gas.

Who discovered oxygen by heating mercury oxide?

Joseph Priestley.

What is the most important industrial process for producing oxygen?

The Linde-Frankl's process.

What is the formula for ozone?

O3.

What reaction occurs when sulfur burns in the presence of oxygen?

It forms sulfur dioxide and can also form sulfur trioxide.

List two uses of sulfur.

Fungicides and the production of sulfuric acid.

What is the boiling point of ozone?

-112°C.

What is the electronic configuration of oxygen?

[He] 2s² 2p⁴.

What is a characteristic of ozone regarding its molecular structure?

It is a triatomic molecule.

What reaction produces hydrogen sulfide (H2S)?

Reacting iron sulfide (FeS) with hydrochloric acid (HCl) or sulfuric acid (H2SO4).

What are the two types of oxides that can be formed with sulfur?

Metallic and non-metallic oxides.

What is sulfur's oxidation number when forming sulfides?

-2.

What is a major component of the Earth's core?

Oxygen, comprising about 45%.