Carbon!
Carbon is a basic of all living thing. Tree does too and wood is only carbon. So paper is made of carbon.
At Room Tempeture, Metals contain the most Elemants.
There were around 52 known elements in the periodic table in 1834. The periodic table was still in its early stages of development during this time, and many elements were discovered and added to the table in the years that followed.
all the elemants have valence electrons the last number of the elecotrons is the elemets valence electrons
The vertical "groups" group elements by chemical properties the horizontal "periods" group elements by the number of energy levels
Symbols.
In the periodic table, the elements are arranged by atomic number
Two--mercury and bromine
Atom number 20 is Calcium (period IV, group 2)
At Room Tempeture, Metals contain the most Elemants.
The halogens, listed in column 17 of a wide form periodic table.
There were around 52 known elements in the periodic table in 1834. The periodic table was still in its early stages of development during this time, and many elements were discovered and added to the table in the years that followed.
all the elemants have valence electrons the last number of the elecotrons is the elemets valence electrons
Those gases are called noble gases. They are i the 18th group of the periodic table.
The vertical "groups" group elements by chemical properties the horizontal "periods" group elements by the number of energy levels
Paper is not a single element.
Groups 1-12 are metals 1-2 are the alkaline and alkaline earth metals, 3-12 are the transistion mrtals and.13-18 are nonmetals.
chemically combined elemets