The atomic number for hydrogen (H) is 1. This means that hydrogen has one proton in its nucleus and one electron orbiting around it. Hydrogen is the simplest and most abundant element in the universe, making up about 75% of its elemental mass. Hydrogen is a highly versatile element that can form compounds with almost every other element on the periodic table. It is commonly found in water, organic compounds, and various industrial processes. Hydrogen is also a key component in fuel cells, which are used to power vehicles and generate electricity in a clean and efficient manner. In terms of its atomic structure, hydrogen has the simplest atomic structure of any element. It consists of just one proton and one electron, giving it a neutral charge overall. This simplicity makes hydrogen a valuable element for scientific research and experimentation. The atomic number of an element is important because it determines its placement on the periodic table. Elements are arranged in order of increasing atomic number, with hydrogen being the first element in the table. This organization helps scientists and researchers understand the properties and behaviors of different elements based on their atomic structure. In conclusion, the atomic number for hydrogen is 1, reflecting its simple atomic structure and abundance in the universe. This versatile element plays a crucial role in various industries and scientific applications, making it a key component of modern society. For more information on hydrogen and its properties, you can visit the following links: - [Hydrogen - Wikipedia](https://en.wikipedia.org/wiki/Hydrogen) - [Periodic Table - Atomic Numbers](https://www.rsc.org/periodic-table) Remember, understanding the atomic number of an element is essential for grasping its fundamental properties and applications in the world around us.

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