Elements in the same group, or vertical column, of the Periodic Table all have the same valence electron configuration, and therefore all have similar reactivity.
See the Related Questions to the left for more information.
With a basic understanding of the periodic table you will immediately know how many valence electrons an element has, especially if it is a main group element, how many energy levels it has, and even some of its chemical properties
"When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties" is a statement of the periodic law.
Periodic Law
From the Periodic Table, Caesium is 'Cs' .
Table Salt. NaCl is the chemical formula for Sodium chloride. It is not on the periodic table because it isn't a chemical element. Sodium chloride is a chemical compound formed when the elements Sodium and Chlorine react with each other.
That there is a periodic repetition of their physical and chemical properties. #RRS
Reactivity is associated with position. Chemical properties of element can be determined from its position.
Physical properties like lustre cannot be determined. Chemical properties like enthalpy values is hard to determine.
Various chemical properties can be determined. It is done by estimation from position of element.
outer electron shell, as shown by the grouping on the periodic table.
Periodic table describes chemical properties of element.It can also describe its degree of reactivity.
The periodic table is a list of the chemical elements. They are arranged to show chemical relationships.
The properties of chemical elements have a periodic trend.
The letters on the periodic table are the chemical symbols of the chemical elements.
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
It is 5th in the periodic table..
Studying physical and chemical properties of chemical elements it is possible to recognize some trends in the periodic table.
The periodic table tells you chemical elements. :)