It is He.
The atomic number of the element with the symbol Be (Beryllium) is 4.
Sodium symbol: Na Atomic number: 11
The symbol of sodium is Na and its atomic number is 11.
The heaviest element with a one letter atomic symbol is uranium (symbol: U).
The element with the atomic mass of 118.69 is tin, symbol Sn.
The atomic number is usually written to the lower left of the atomic symbol. The atomic mass is usually written to the upper right of the atomic symbol. So, carbon-14 would look like this: 6C14
The element with atomic no. 110 is Darmstadtium. Its symbol is Ds.
In an element box, you will typically find the element's symbol, atomic number, atomic mass, and sometimes its electron configuration.
The number above an element's symbol in the periodic table represents its atomic number, which indicates the number of protons in the nucleus of an atom of that element. Atomic number determines the element's unique identity and its placement in the periodic table.
An atomic symbol represents a specific isotope of an element, including both the element symbol and the atomic mass number. A chemical symbol, on the other hand, is just the unique abbreviation for an element on the periodic table.
The chemical element with the atomic number 74 is wolfram (W).
Atomic Symbol