Bromine is the only liquid non-metal.

(A) - True

(B) - False

The statement "Bromine is the only liquid non-metal" is true. So, the correct answer is (A) - True. Let's delve a bit deeper into why this is the case and what it means in the context of chemistry.

Understanding Bromine's Unique Properties

Bromine, represented by the symbol Br on the periodic table, is indeed the only non-metal that exists in a liquid state at room temperature (around 20°C or 68°F). This characteristic sets it apart from other non-metals, which are typically gases or solids under similar conditions.

Physical State of Non-Metals

To grasp why bromine is unique, it's helpful to look at the physical states of other non-metals:

• Gases: Many non-metals, such as oxygen (O), nitrogen (N), and chlorine (Cl), are gases at room temperature.
• Solids: Others, like carbon (C) in the form of graphite or diamond, and sulfur (S), are solid at room temperature.

In contrast, bromine is a reddish-brown liquid that has a relatively low boiling point of 58.8°C (137.8°F). This property is due to its molecular structure and the type of bonding present in bromine molecules.

The Chemical Nature of Bromine

Bromine belongs to the group of elements known as halogens, which are found in Group 17 of the periodic table. The halogens are characterized by their high reactivity and the presence of seven electrons in their outer shell, making them eager to gain an additional electron to achieve a stable octet configuration.

Why Liquid?

The reason bromine can exist as a liquid at room temperature is largely due to its molecular weight and the strength of the intermolecular forces at play. Bromine molecules (Br2) are held together by van der Waals forces, which are weaker than covalent bonds but still significant enough to keep bromine in a liquid state under normal conditions.

Comparative Analysis with Other Elements

When comparing bromine to other non-metals, it's interesting to note that while iodine (I) is also a halogen and exists as a solid at room temperature, it is heavier and has a higher boiling point than bromine. This further emphasizes bromine's unique position among non-metals.

Applications of Bromine

Bromine's liquid state and chemical properties make it useful in various applications, including:

• Manufacturing flame retardants
• Producing certain types of pharmaceuticals
• Utilizing in water treatment processes

In summary, bromine's status as the only liquid non-metal is a fascinating aspect of its chemistry, highlighting the diversity of elements and their behaviors under different conditions. Understanding these properties not only enriches our knowledge of the periodic table but also illustrates the practical applications of these elements in our daily lives.