U+2082 "₂" Subscript Two Unicode Character

U+2082 "₂" Subscript Two is a typographic symbol used to represent the digit two in a smaller, lowered position relative to the baseline of text. It is part of the Superscripts and Subscripts block in Unicode, designed to facilitate chemical formulas, mathematical notation, and scientific writing where a subscript numeral is required, such as in the molecular formula for water (H₂O). This character provides a standardized, digital representation of the subscript two that ensures consistent display across different platforms and fonts, avoiding the need for manual formatting or font-based workarounds.

General Properties

Code Point	U+2082
Version Added	1.1
Name	Subscript Two
Unicode 1.0 Name	Subscript Digit Two
Block	Superscripts and Subscripts
General Category	Other Number
Canonical Combining Class	Not Reordered
Bidirectional Class	European Number
Decomposition Type	Sub
Decomposition Mapping	"2" U+0032 Digit Two

Encodings

HTML Decimal Encoding	₂
HTML Hex Encoding	₂
UTF-8 Encoding	0xE2 0x82 0x82
UTF-16 Encoding	0x2082
UTF-32 Encoding	0x00002082
C/C++/Java Escape	\u2082

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	Digital
Numeric Value	2
Line Break	Ambiguous (Alphabetic or Ideographic)
East Asian Width	Ambiguous
Changes When NFKC Casefolded	Yes
NFKC Casefold	"2" U+0032 Digit Two
NFKC Simple Casefold	"2" U+0032 Digit Two
Script	Common
Script Extensions	Common
Indic Syllabic Category	Syllable Modifier
ID Compat Math Continue	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other