The First 10 Elements with Atomic Number
The periodic table is a tabular arrangement of the elements, organized by their atomic number, electron configuration, and recurring chemical properties. In this article, we will explore the first 10 elements with atomic number, from Hydrogen to Neon.
1. Hydrogen (H) - Atomic Number 1
Atomic Mass: 1.00794 u (unified atomic mass units)
Hydrogen is the lightest and most abundant chemical element in the universe. It is a highly reactive gas and plays a crucial role in many chemical reactions.
2. Helium (He) - Atomic Number 2
Atomic Mass: 4.002602 u
Helium is a noble gas, meaning it is chemically inert and does not easily react with other elements. It is a lighter-than-air gas, commonly used in balloons and airships.
3. Lithium (Li) - Atomic Number 3
Atomic Mass: 6.941 u
Lithium is a soft, silvery-white alkali metal with a number of important uses, including batteries, ceramics, and pharmaceuticals.
4. Beryllium (Be) - Atomic Number 4
Atomic Mass: 9.012182 u
Beryllium is a lightweight, yet extremely strong metal used in aerospace engineering and other high-tech applications.
5. Boron (B) - Atomic Number 5
Atomic Mass: 10.811 u
Boron is a metalloid, which means it exhibits some metal-like properties, but is not a true metal. It is used in a variety of applications, including fiberglass, ceramics, and fertilizers.
6. Carbon (C) - Atomic Number 6
Atomic Mass: 12.0107 u
Carbon is a fundamental element in all living organisms, forming the backbone of biomolecules such as carbohydrates, proteins, and nucleic acids.
7. Nitrogen (N) - Atomic Number 7
Atomic Mass: 14.0067 u
Nitrogen is a colorless, odorless gas that makes up approximately 78% of the Earth's atmosphere.
8. Oxygen (O) - Atomic Number 8
Atomic Mass: 15.9994 u
Oxygen is a vital element for human life, making up approximately 21% of the Earth's atmosphere and being essential for respiration.
9. Fluorine (F) - Atomic Number 9
Atomic Mass: 18.9984032 u
Fluorine is the lightest halogen, a group of highly reactive elements. It is used in a variety of applications, including toothpaste, refrigerants, and semiconductors.
10. Neon (Ne) - Atomic Number 10
Atomic Mass: 20.1797 u
Neon is a noble gas, used in Neon signs, plasma TVs, and other applications that require colorful, thin-film coatings.
These are the first 10 elements with atomic number, each with its unique properties and uses. Understanding the properties and characteristics of these elements is essential for a wide range of scientific and technological applications.
