Half-Life, Half-Life: Blueshift, Half-life: Opposing Force, Half-life: High Definition pack (might not classify as a game), Half-Life: Source, Half-Life 2, Half-Life 2: Episode 1, and Half-Life 2: Episode 2. Eight games total not including countless mods created by fans that you can download for free on moddb.com and fileplanet.com. Other games by Valve software include Left 4 Dead, Left 4 Dead 2, Portal, Portal 2, Counter Strike, Counter Strike: Source, Team Fortress, Team Fortress 2, and Alien Swarm. Another Half-Life game would be Half-Life: Decay. You might also be able to count Half-Life Deathmatch and Half-Life 2 Deathmatch.
Theres 7 Chatpers in Episode Two:To the White ForestThe Vortal CoilFreeman PontifexRiding SHotgunUnder the RadarOur Mutual FriendT-Minus One.
An Episode in the Life of a Landscape Painter has 87 pages.
There is two commercial breaks in a two and a half men episode. One in the middle, one at the end.
there are 70 episode of Life With Derek.
There are 20 levels, the second half of which are the first half reversed. They get harder as you progress and blocking is essential in the later levels.
Half Life - novel - has 440 pages.
Half a Life - memoir - has 224 pages.
A lot mabe around 40
Each episode of M*A*S*H was half an hour.
The half life of a radioisotope is the time taken for the number of radioactive atoms to decay to one-half. A free neutron has a half life of 10.6 minutes. The half life of carbon 11 is 20.3 minutes. Many isotopes have very short half lives, and many have very long ones.
The half life of each radio-isotope is different, so there is no single answer.