The Periodic Table of Elements is the most important tool by which we understand chemistry. All of chemistry depends upon it.
The periodic table tells you all the known elements know to us. I dont think there is such a thing as periods.
The elements of the periodic table are arranged in groups and periods. All of the elements in a period have the same number of atomic orbitals where as in a group all the elements have the same number of valence electrons.
by their atomic number
Pauli
They run from left to right
we use the periodic table because it helps us with the atoms and electrons it tells us the mass number atomic number and the symbol
The periodic table tells you all the known elements know to us. I dont think there is such a thing as periods.
Periodic table show that elements have properties which are periodic in nature. These properties can be grouped together.
The elements of the periodic table are arranged in groups and periods. All of the elements in a period have the same number of atomic orbitals where as in a group all the elements have the same number of valence electrons.
The periodic table allows us to understand why the chemical elements have the properties that they have. It is the most basic organizing principle in chemistry.
Periodic table of elements provides us a lot of information about element's intrinsic properties. We can get the atomic weight of an element by looking at the periodic table. Trends about the electronegativity and atomic size can also be computed.
Elements in the same period has same number of valence shells.There are 7 periods in Periodic Table.
Americium and Californium
The periodic table is in order of atomic mass
by their atomic number
trees may help us in the future because we will need to get oxygen to help us breath in the future because of pollution... etc.
Periodic table determine chemical properties. It later helps in predicting the bonds formed by elements.