For example, this sentence. And then another one.
Latest discussions
| Score | # id | Title | Author | Comments | Created | Updated |
|---|---|---|---|---|---|---|
| #2 | There's a typo in this article at "mathmatcs" |  Barack Obama 11 | 2 | 2022-11-02 | 2024-05-21 | |
| #1 | Test issue |  Donald Trump 29 | 1 | 2022-11-02 | 2024-08-20 |
Top discussions
| Score | # id | Title | Author | Comments | Created | Updated |
|---|---|---|---|---|---|---|
| #2 | There's a typo in this article at "mathmatcs" | Barack Obama 11 | 2 | 2022-11-02 | 2024-05-21 | |
| #1 | Test issue | Donald Trump 29 | 1 | 2022-11-02 | 2024-08-20 |
Articles by others on the same topic
Helium is the chemical element with atomic number 2 and symbol . It is a noble gas. It has a closed-shell electronic structure and is exceptionally unreactive. At ordinary pressure it remains liquid to very low temperatures without freezing; helium-4 also provides the classic example of a superfluid at sufficiently low temperature.[ref]
Helium is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that is the second lightest and second most abundant element in the observable universe, after hydrogen. Its atomic number is 2, and its chemical symbol is He. Helium is classified as a noble gas, which means it has a very low reactivity due to its filled electron shell.
