Question

A......... is an abbreviation of the name of an element.

Answer 1

hey there! here is your answer.

A symbol is an abbreviation of the name of an element. .....

how it helps you. . . . .

Answer 2

A symbol is an abbreviation of the name of an element.

• Dmitri Mendeleev was the first scientist to create a periodic table of the elements which is similar to the modern periodic table.
• In this periodic table  when the elements were ordered by increasing atomic weight,  properties of the elements repeated periodically.
• The periodic table helped predict the properties of new elements which were not even discovered.
• The periodic table is managed by the International Union of Pure and Applied Chemistry, or IUPAC.
• The table is divided into four roughly rectangular areas which is called blocks.
• The rows of the table are called periods, and the columns are called groups.
• Elements from the same group of the periodic table show similar chemical characteristics.
• Today, 118 elements are known, the first 94 of which are known to occur naturally on Earth at present.
• eighty have a stable isotope and three more (bismuth, thorium, and uranium) undergo radioactive decay.
• The periodic table is a graphic description of the periodic law.
• Periodic law states that the properties and atomic structures of the chemical elements are a periodic function of their atomic number.
• The sequence in which the orbitals are filled is given by the Aufbau principle.
• It is also known as  the Madelung or Klechkovsky rule.
• Elements in the same group have the same number of outer electrons and analogous outer electron configurations.
• An international naming convention suggests the groups are numbered numerically from 1 to 18 from the leftmost column (the alkali metals) to the rightmost column.

#SPJ3