If you're referring to M9 pistol in use with the US Armed Forces, it's 15. If you're referring to a 9mm pistol in general, it can vary greatly by manufacturer, and you'd need to be more specific about which one you were referring to.
15
you put the magazine into the butt of the pistol, then to charge the pistol pull the slide to the rear and let go or push down on the slide catch if there are no more rounds in the magazine.
The M9 magazine holds 15 rounds. Any magazine designed to be compatible with the Beretta 92 is capable of being used in an M9 pistol, but the only issue magazines are 15 round non-OEM magazines.
Calico M-110p .22 lr pistol holds 100 rounds in removable magazines.
the semi-automatic 45 pistol holds seven rounds in the magazine and one in the chamber
The Smith & Wesson 5906 typically holds 15 rounds in its standard magazine. However, with an extended magazine, it can accommodate up to 18 rounds. This double-action/single-action pistol is chambered for the 9mm cartridge.
Same as a Model 92 or if you have an extended magazine up to 20
The larger the caliber, the fewer the rounds carried in the typical hand magazine. A 9 mm generally packs 15 staggered rounds. A .45 will have 10 rounds lined up straight. Some models support extended magazines. The Browning HP, introduced in Belgium in 1935, came with a 13 round magazine. You could hand feed one round in the chamber, giving a total pistol capacity of 14 rounds.
A Titan .25 caliber pistol typically has a magazine capacity of 7 to 9 rounds, depending on the specific model.
it depends what gun it is but usually there is 8 bullets in a semi-automatic pistol. with some there are only 7 bullets in the magazine but to achieve the maximum rounds the gun can carry the 7 shot mag is inserted, the pistol is cocked and the mag is removed, another bullet is inserted and the mag is again placed inside the gun.
We can't really guess- your pistol was made by Fabrique National in Herstal Belgium- but you did not tell us the model or caliber.
A pistol typically has a magazine, which is a device that holds ammunition and feeds it into the chamber for firing. The term "clip" is often mistakenly used to refer to a magazine, but clips are used to hold rounds together for loading into a magazine, not as a feeding device themselves. In summary, pistols use magazines, while clips serve a different purpose in the loading process.