Question

what is periodic table ???? importance && how to learn.....​

Answer 1

Answer:

Explanation:

The periodic table is one of the most important and basic portion of chemistry. It talks about all the atoms present in nature and their atomic mass etc. The elements in the periodic table are arranged in rows and columns. ... The elements are also arranged in according to their properties

Answer 2

The Importance of a Periodic Table

The periodic table is one of the most important tools in the history of chemistry. It describes the atomic properties of every known chemical element in a concise format, including the atomic number, atomic mass and relationships between the elements. Elements with similar chemical properties are arranged in columns in the periodic table.

The table is useful for modern students and scientists because it helps predict the types of chemical reactions that are likely for an element. Rather than memorize facts and figures for each element, a quick glance at the table reveals a lot about the reactivity of an element, whether it is likely to conduct electricity, whether it is hard or soft, and many other characteristics.

Elements in the same column as one other (groups) share similar properties. For example, the elements in the first column (the alkali metals) are all metals that usually carry a 1+ charge in reactions, react vigorously with water, and combine readily with nonmetals.

Trends or Periodicity

The periodic table is organized according to trends in element properties.

Moving Left to Right Across the Row

Atomic Radius Decreases

Ionization Energy Increases

Electron Affinity Generally Increases (except Noble Gases)

Electronegativity Increases

Moving Top to Bottom Down a Column

Atomic Radius Increases

Ionization Energy Decreases

Electron Affinity Usually Decreases

Electronegativity Decreases