Question

Lucy: Can you tell me what the green color here in the periodic table stands for? a) Halogens b) Non-metals c) Noble gases d) Metalloids

Answer 1

The green color in the periodic table often represents non-metals. Elements can be classified according to their position in the periodic table, such as helium being the lightest noble gas, beryllium as the lightest alkaline earth metal, lithium as the lightest alkali metal, and oxygen as the lightest chalcogen. Elements like Se, Mg, and Ge are classified respectively as a nonmetal, metal, and metalloid.

Step-by-step explanation:

In the periodic table, the green color typically indicates the non-metals. For the provided options, the correct choice that green represents is option b) Non-metals. In the periodic table, different colors are used to distinguish between various groups of elements such as metals, non-metals, metalloids, and groups like halogens or noble gases.

To answer the student's question using the periodic table:

• The lightest member of the noble gases is Helium (He).
• The lightest alkaline earth metal is Beryllium (Be).
• The lightest alkali metal is Lithium (Li).
• The lightest chalcogen is Oxygen (O).

Classifying elements based on their position in the periodic table, for example:

• Selenium (Se) is a nonmetal.
• Magnesium (Mg) is a metal.
• Germanium (Ge) is a metalloid.

Answer 2

The green color in the periodic table represents the metalloids. Option D is correct.

What is metalloids ?

The metalloids are represented by the color green in the periodic table. Elements known as "metalloids" combine characteristics of metals and nonmetals.

Usually, they are semiconductors, which means that their electrical conductivity is in the middle of that of metals and insulators. Another well-known property of metalloids is their capacity to combine with nonmetals to produce alloys.

Therefore, Option D is correct.