火
Primary radical
火 is the Unicode primary radical used to organise 炭.
火 is the Unicode primary radical used to organise 炭.
山 is recorded as the sound-side component in this pictophonetic analysis.
Each square adds one stroke in the standard writing order.
carbon, charcoal, coal
炭 has 9 strokes. Follow the animated stroke-order sequence above, then practise it on the writing page.
火 is the radical in 炭. It can provide a meaning-side clue.
煤炭 (méitàn): coal; 炭 (tàn): wood charcoal; coal.