there are no compounds on a periodic table. only elements are placed in the periodic table and they are grouped by similar attributes
they are grouped by their chemical properties
The elements are aranged in rows according to increasing atomic number. They are grouped in columns because they have similar chemical properties.
They are grouped horizontally by atomic number and vertically by similar properties.
Periodic table show that elements have properties which are periodic in nature. These properties can be grouped together.
Group are based on similar properties. The elements having same chemical properties are grouped together.
metals, non-metails and metalloids
The two properties that the modern periodic table is based on are chemical and physical properties. The elements that have these properties in common are usually grouped with one another.
Elements are grouped by their chemical properties. But, in arranging the chemical properties, physical properties are distinguished.
the periodic table is grouped according to similarities. when Mendeleev grouped his first periodic table they followed a pattern. any elements that contained similarities they were all put into the same column.
The elements with similar properties are grouped together in families. They have same number of valence electrons.
There is a line in the periodic table that separates the metals and the non-metals.
Chemical properties
Properties of elements are periodic function of atomic number. Elements with same chemical properties are grouped together.
Mendeleev arranged elements in rows and columns according to increasing atomic masses. The elements with same properties were grouped together which formed the base for modern periodic table.
Atomic number controls its position in periodic table. It is grouped with the elements having same properties.
The elements are arranged in the increasing order of their atomic number and repeating periodic properties.
They have similar properties so are grouped together.
Elements with same property are grouped together. Property can be estimated by its position.
Because their chemical properties are mainly dependent on their valence (outer-most) electrons ... which does make a pattern on the periodic table.
In the periodic table, the elements are grouped according to their properties. Elements in a group has an equal number of valence electrons. So the elements in a group have most common chemical properties.
Because the elements are grouped according to similar characteristics. Even by knowing where an element is on the periodic table based solely on its proton number, we can still predict its properties by using its position on the periodic table.
Similar elements have chemical properties that are also similar. The periodic table is grouped into families. This can predict trends among the elements.
The elements with same properties need to be grouped together. So that it is easier to study the elements
They are grouped by similar characteristics