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Hydrogen is a gas. atomic number of H is 1.
Hydrogen is a non metal element. Atomic mass of it is 1.
Hydrogen has an atomic number of 1. It is the first element in the periodic table and has one proton in its nucleus.
The atomic number of an Element refers to it's position in The Periodic Table. The first element (Hydrogen - H) has the atomic number 1. The second element (Helium - He) has the atomic number 2. The fifty-second element (Tellurium - Te) has the atomic number 52. And so on.
Element.
Hydrogen is a chemical element with the symbol H and atomic number 1.
The atomic number for hydrogen (H) is 1. When hydrogen loses an electron, it becomes a hydrogen ion with a positive charge, denoted as H+. This means the atomic number for H+ remains 1 since it still has one proton in its nucleus.
Sodium symbol: Na Atomic number: 11
Hydrogen. Atomic number is defined by the number of protons in an element and increases from left to right (H=1, He=2, Li=3, etc.).
The element with the atomic number 1 is Hydrogen (H). This means that the hydrogen atom generally has 1 electron and 1 proton.
Element
Hydrogen (H) the first on the Periodic Table.