↾
Arrow 47
- Unicode
- U+21BE
- Category
- Arrows
- HTML Entity
- ↾
- CSS
- \21BE
The ↾ (Upwards Harpoon with Rightwards Barb) symbol features a vertical line pointing upward with only the right half of an arrowhead. Originating from the Unicode Arrows block, this specialized character is essential in scientific notation, particularly in chemistry and quantum physics, to represent a "spin up" electron. While rarely used in everyday social media, it remains a vital typographical tool for academic and technical documentation.
How to Type
- Windows
- Type 21BE then Alt+X (in Word) or Win+. and search "harpoon"
- macOS
- Control+Command+Space then search "upwards harpoon"
- Linux
- Ctrl+Shift+U then 21be
- HTML
- ↾ or &uharpr;
In Programming
In quantum mechanics and chemistry, this symbol is used in atomic orbital diagrams to denote a single electron with a "spin up" state (+1/2).
Tags
arrow
barb right arrow
electron spin symbol
half arrow up
harpoon
math
physics notation
quantum physics arrow
right
spin up arrow
spin up electron
up
upwards harpoon chemistry