Hosted on MSN3mon
118 Elements and Their Symbols and Atomic Numbers: Definition, Symbol with Atomic Number
The symbol serves as a shorthand notation for each element's name in formulas and ... H - Hydrogen He - Helium Li - Lithium Be - Beryllium ...
BBC3y
The modern periodic table
The element symbol always starts with a capital letter. Any letters that follow will be lower case letters, for example, helium is He. Some element symbols are simple. For example, oxygen is O ...
Science News14d
A new iron compound hints ‘primordial’ helium hides in Earth’s core
Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.