N2, Cl2, and O2 are all
A. diatomic molecules
B. solids
C. liquids
D. in the same family
The Correct Answer and Explanation is :
The correct answer is A. diatomic molecules.
Explanation:
N2 (nitrogen gas), Cl2 (chlorine gas), and O2 (oxygen gas) are all classified as diatomic molecules because they are composed of two atoms of the same element bonded together. This diatomic nature is a common characteristic among several gases, particularly the nonmetals found in the periodic table. In their molecular forms, these elements exist as pairs of atoms that are tightly bonded through covalent bonds, which involve the sharing of electrons.
- N2 (Nitrogen): Nitrogen makes up about 78% of the Earth’s atmosphere and exists primarily as diatomic molecules. In nature, nitrogen atoms are relatively inert, meaning they do not readily react with other substances under standard conditions. The strong triple bond between the two nitrogen atoms in N2 contributes to this inertness.
- Cl2 (Chlorine): Chlorine gas is another example of a diatomic molecule. It is a pale yellow-green gas at room temperature and is known for its reactivity, particularly in forming compounds with other elements. The diatomic nature of chlorine allows it to form Cl2 molecules, which are more stable than individual chlorine atoms.
- O2 (Oxygen): Oxygen is essential for life as we know it and also exists as diatomic molecules in the form of O2. Oxygen’s diatomic form is crucial for respiration in aerobic organisms, and its reactivity allows it to participate in combustion and other chemical reactions. The bond between the two oxygen atoms in O2 is a double bond, which is relatively strong but allows for various chemical interactions with other elements.
In conclusion, N2, Cl2, and O2 are all diatomic molecules due to their composition of two atoms of the same element, highlighting their unique properties and roles in chemical processes.