What is the basic arrangement of the modern periodic table?

What is the basic arrangement of the modern periodic table?

In the modern periodic table, the elements are arranged according to their atomic number – not their relative atomic mass . In the periodic table the elements are arranged into: rows, called periods , in order of increasing atomic number. vertical columns, called groups , where the elements have similar properties.

What is the arrangement of the elements in the periodic table *?

The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

What are the 3 main ways the periodic table is arranged?

Periodic table is organized by their valence electrons, atomic number and their atomic mass ( and also their reactivity/ groups and families). Periodic table lists their elemental symbol, atomic mass and their name.

Who is the father of the modern periodic table?

Dmitri Mendeleev
Periodic table/Inventors

In his adult life he was a brilliant scientist, rising quickly in academic circles. He wrote a textbook, Chemical Principles, because he couldn’t find an adequate Russian book. Mendeleev discovered the periodic table (or Periodic System, as he called it) while attempting to organise the elements in February of 1869.

Why is it required to arrange the elements in a periodic table?

Heavier elements have more shells that can hold larger numbers of electrons. That number tends to fit nicely with the way the table is arranged, namely to place elements with similar properties in the same group. For instance, group 1 elements have one electron in their outer shell and those in group 2 have two.

How an atom will behave in different environments?

Elements are made of atoms, and the structure of the atom determines how it will behave when interacting with other chemicals. The key in determining how an atom will behave in different environments lies in the arrangement of electrons within the atom.

How many different ways is the periodic table arranged?

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.