Saved Bookmarks
| 1. |
What is helium????? |
|
Answer»
Helium is a chemical element with the SYMBOL He and atomic number 2. It is a colorless, odorless, TASTELESS, non-toxic, inert, monatomic gas, the first in the noble gas group in the PERIODIC table. Its boiling point is the lowest AMONG all the elements. Symbol: He Atomic mass: 4.002602 u Atomic number: 2 Electron CONFIGURATION: 1s2 Boiling point: -268.9 °C |
|