According to the Chunks Minecraft page, "In multiplayer mode, a grid with a default radius of 10 (for a total of 21x21 or 441 chunks) is loaded around each player and sent to the player by default, although this radius can be configured to be between 3 and 15, usually only lowered with a poor connection home server.
Herein, where are spawn chunks?
The exact rule includes chunks whose center is less than or equal to 128 blocks away from the world spawn along both axes. In the rare case where the world spawn is located at the exact center of a chunk, 17 chunks will be loaded along that axis, and 13 of which activate entities.
What is a slime chunk in Minecraft?
Slimes spawn in the Overworld in specific "slime chunks" below layer 40 regardless of light levels. They can also spawn in swamp biomes between layers 50 and 70 in light levels of 7 or less.
How many diamonds are in a chunk?
There is ~1 diamond ore vein generated per chunk. An ore vein will have between 3 - 8 diamond ore in it. However, that vein can be overwritten by other generated structures - such structures, such as caves, can leave you with a chunk with no ore vein in it.