What is antimatter ?

Question

What exactly is it

Can we make it?

And i heard that if we can make them run in a nuclear plant that we would have to much energy is it trut?

Answer 1

it is the opposite of matter and has different  characteristics to that of matter.

yes that's true.

Answer 2

Antimatter is the oppositely charged equivalent of matter. For example, the antiparticle of electron is a positron, which has the same mass, and characteristics, except it has a positive charge of e (1.6x10^-19Coulombs).

The fun thing about them is matter and antimatter don't mix, if they come into contact they annihilate each other, releasing large amounts of energy. This is where the idea for a nuclear plant comes from. If we could harness this energy... we would be well off. But we can't exactly create large amounts of antimatter, for how would we store it? As soon as it comes into contact with anything at all... BOOM! So yeah, not exactly practical.

However, antimatter has been created in particle accelerators, for very short amounts of time (fraction of a second). These are the basics, wikipedia is always good if you want more info.  

Answer 3

when the big bang happened, two types of "matter" was created. the matter and antimatter. antimatter is the opposite of matter. it has opposing ionic charges to that of matter. when you bring antimatter in contact with matter it totally destroys each other with 100 percent conversion to energy. this process is called annhilation. antimatter does not occur naturally on eath, or our solar system and not even in our galaxy.

antimatter has already been made by CERN in Europe using their huge particle accelerator although right now its only possible to produce antimatter in very minute quantities such as a few atoms. haha

antimatter has the potential to be the energy source of the future. a few grams of antimatter can power a major city for weeks. the poblem though is as soon as antimatter comes in contact with matter (even air) it will annhilate. and a gram of antimatter has several kilotons of explosive power. therefore a miniscule amount of antimatter can be like a giant atomic bomb. so its really unstable. but scientists are hoping to overcome the problem and soon we may have antimatter powered reactors providing virtually free limitless, pollutionless energy.