The periodic table is a very important thing we use as a tool in Chemistry class. The periodic table is table of elements which are arranged by order of atomic number. The standard form of the table includes periods which are horizontal on the periodic table. Groups are also important in the periodic table they are the vertical columns on the periodic table. Elements in groups have some similar properties to each other. There is no one single or best structure for the periodic table but by whatever consensus there is, the form used here is very useful. The periodic table is such a useful tool in chemistry that we have used for hundreds of years to solve problems about our universe. Many chemists have put the time in to form this periodic table and it is still being added to now days. On the periodic table it consists of metals and non-metals. There are also groups in the metals which are named, alkali metals, alkaline earth metals, lanthanoids, actinoids, transition metals, and post-transtion metals. Each of these groups consists of metals on the periodic table and they have similar chemical properties which why they are classified. The non-metals are classified in groups called, metalloids, other non-metals, halogens, and noble gases. Each element has its own atomic number, the atomic number tells how many protons are in an element. Elements in the periodic table also have mass numbers, which tell how many neutrons and protons are in the element. There periodic table is used a lot in our chemistry class and is a great tool to help with many problems.
1: Atomic Number
Hydrogen: NAME
H: Symbol
1.008: Mass Number
We used this website called ptable.com. This was a very good website to help with the periodic table. We did this worksheet where we had to find the boiling point, melting point, density, atomic radius, electronegatvity, and number of isotopes. This website gave us all this information of elements on the periodic table.
No comments:
Post a Comment