cloud_sync said:
• Can we create any of the periodic table elements?
• Can we make it cost efficient in the future?
• Can we synthesis H20 in the laboratory?
Alright. Currently, we have no way of creating elements except for a few certain ones from radioactive decay or nuclear fusion. Most of the elements do NOT fall into this category. On the whole, the only elements we have access to are what we gather from nature.
Can we make it cost efficient? We have no idea if we will ever be able to create elements at will, much less whether it will be cost effective.
Water, H20, is easy to create as long as we have the required compoonents. Hydrogen and Oxygen. Simply letting the two gasses mix and applying a spark you can make the whole mixture turn into water. (And blow up whatever it was in if you arent careful. That mixture is very explosive.) In fact, liquid hydrogen and liquid oxygen are routinely used as a fuel for launching spacecraft .
All matter is made up of Atoms. The specific makeup of individual atoms is what makes one element different than another. When you add atoms together they make things called Molecules. Different combinations of elements make up different molecules. H2O is water. Two Hydrogen and One Oxygen atom. CO2, or Carbon Dioxide, is Two Oxygen atoms and One Carbon atom. Molecules can be simple molecules like the ones I just talked about, or they can be hugely complex molecules like proteins, or anything in between.
Look up atoms, molecules, matter, and other related subjects on Wikipedia if you would like more info.