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Worksheet about Periodic Table
Subject: Chemistry
7th Grade
Term 1
Year: 2023/2024
Size: 803.2KB
Number of clicks: 46
Publish date:November 04, 2023
Added by: Eman
Last download date: 2024-09-05 16:34:04
Updated by: Eman9966 on 2023-11-04 17:11:00
By: theodor SIVACHEMIST
File info: The Periodic Table of Elements is a tabular arrangement of chemical elements based on their atomic numbers, electron configurations, and recurring chemical properties. It provides a systematic way of organizing and categorizing the elements. The table is divided into rows called periods and columns called groups. Each element is represented by its chemical symbol, atomic number, and atomic mass. The Periodic Table is arranged in such a way that elements with similar properties are grouped together. The vertical columns, or groups, represent elements with similar chemical behaviors and shared characteristics. There are 18 groups in total. The horizontal rows, or periods, represent the successive energy levels or shells occupied by electrons in the atom. Elements in the same period have the same number of electron shells. The Periodic Table also provides valuable information about an element's properties, such as its atomic radius, electronegativity, valency, and the arrangement of its electrons in different orbitals. Additionally, the Periodic Table allows us to identify trends and patterns in elemental properties. For example, elements generally become more metallic in character as you move from right to left across a period, and they tend to become more reactive as you move down a group. Overall, the Periodic Table is a fundamental tool in chemistry that helps scientists understand the relationships between different elements and predict their chemical behavior.

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