Do your homework and stop looking on the web....that's what I do tho
Plastic is a compound, not an element. It is made mainly from carbon, hydrogen, and oxygen, all of which are elements found on the Periodic Table of Elements.
Bromine is a halogen element, belonging to Group 17 of the periodic table. It is a reddish-brown liquid at room temperature and is highly reactive.
On the peroidic table of elements, the family tells you a brief overview of what kind of element it is. It could be a metal, or gas, and it usually describes what kind of metal (transition) or what kind of gas (noble).
Dmitri Mendeleev is credited with publishing the first widely recognized periodic table of elements in 1869. He organized the elements based on their atomic mass and predicted the properties of missing elements, allowing for future discoveries.
If the elements (which were discovered by his time) were organized in the increasing order of their atomic weight, they will exhibit an apparent periodicity of properties. It also had the ability to predict physical and chemical properties of some undiscovered elements.
The first period of the periodic table's elements all have 1 energy level.
The atomic number that sodium has in periodic table is 11 and valency is 1. The periodic table is a kind of table that was invented for the better study of elements and other types of compound. It makes the systematic study of elements.
Noble Gases
As of January 27, 2008, there are 117 elements, and all of which can be found on the Periodic Table of Elements. See the link below for the Periodic Table of elements.
a negative charge
The answer is: noble gases
There are four blocks named as s, p ,d and f.
Data Table
The horizontal rows of elements on the periodic table of elements. Periods gain one proton and one electron as you read the table from left to right.
All elements in the Periodic Table contain only one type of atom.
It's not an element; Check the Periodic Table. It's not a mixture, either, but a kind of carbohydrate. It's a molecular compound.
Zinc is a transition metal in Group 12 of the Periodic Table.