=unknown 1: silicon/unknown 2: neon/unknown 3: rubidium/unknown 4: krypton/unknown 5: gold/unknown 6: strontium/unknown 7: magnesium/unknown 8:cesium/unknown 9: thallium==are those the answers?=
The four predicted elements lighter than the rare earth elements, ekaboron (Eb), ekaaluminium (Ea), ekamanganese (Em), and ekasilicon (Es), proved to be good predictors of the properties of scandium, gallium, technetium and germanium respectively, which each fill the spot in the Periodic Table assigned by Mendeleev.
One was right below Silicon, which Mendeleev called Ekasilicon. It was later discovered to be Germanium.
noble gases and actinides
The heat of the water acts as a catalysis. Basically this just speeds up the reaction!
Synthetic is the term you are looking for i believe.
The run-down area attracted a certain shady element. A new element was discovered at the lab.
Francium and Fluorine. They would react instantaneously and explosively. However, this would never be done in an open lab. , because francium is radio-active. However, Sodium (Grp (I)) and Chlorine (Grp(VII)), will react in a gas jar in the lab. But less vigorously than the above two.
There are 118 elements know to man at this date. That is to say that man has created an atom which contains 118 protons, 118 neutrons, and 118 electrons. This fell apart as soon as it was created, as do most synthetic elements. There are only about 91 naturally occurring and semi-stable elements, the remaining 27 are scientifically lab founded..
that is supposed to be unknown until you figure it out.
secret unknown place called underground.
idl
All are radioactive, dangerous and unstable
Artificial Elements can only be made by synthesisation in a lab (by firing an atom at a projectile). Wheras natural elements can be found naturally.
Notify a lab supervisor
Electronic balance
You can get Unown eggs from the Lab, Shelter, or through breeding. (Once you get one of them, you can breed the other forms if you pair an Unown with Ditto) If you'r talking about Unknown eggs in the meaning of not in your Dex, it's the same way :3 Lab, Shelter, or from trading Pokemon and breeding an egg.
You really do not unless your daily work concerns the chemistry of different elements. It is never hard to find a periodic table of elements around a chemistry lab or office.
which group? She worked in the lab where she found radioactive elements
you cant its impossible, trick question
they use computer graphics and animation in a tech lab!