Noble gasses
which is the second element on the Periodic Table
Heilum
What is the atomic number of calcuim
20
what is the first element in the Lanthanides section of the peroidic table
Lanthanum
Is mercury(not the planet) dangoures for you
yes it is toxic
What is the atomic mass of Einsteinium
252 u
What is the element beneath neon in noble gases
Argon
When was lithium discoverd
1817
What is the atomic mass of samarium
150.36 u
What symbols of gold on the transtion metal
AU
When was Neptunium discoverd?
1940
What element in the noble gases starts with the letter r
Radon
What is the only radioactive element in the alkali element
What is the atomic number of cerium
58
What is iron used for?
to make steeland renforiced concrete etc.
What is uranuim used for?
nuclear power plants or nuclear bombs.
When was Krypton discovered?
1898
How much elecctrons does Beryllium have
4
When was Erbium discoverd
1843
What is hafnium used for in the transtion metals section of the perodic table?
control rods for nuclear subs.
Who discoverd plutonium
Glenn T. Seaborg.
What is the rarest element in the noble gasses
Xenon
What is the boiling point of magnuisum
1091°C or 1995.8
What is the boiling point of yittebuim
1195.85°C or 2184.53 F
Where can you find gold in the world?
China,Australlia, and south africa
what is the boiling point of uranuim?
4131°C or 7467.8