You can break the periodic table into smaller sections so it is easier for your child to learn. 24 elements are human-made and are known as synthetic elements. 94 elements are naturally occurring elements found on Earth. As of 2021, there are 118 elements in the modern periodic table.Some of the common periodic trends include atomic radius, electronegativity, ionization energy, electron affinity, and oxidation states. The arrangement of elements in the periodic table enables scientists to identify patterns or trends in the properties of elements. Periodicity is the term used to describe the recurring trends or patterns in the chemical and physical properties of elements in the periodic table.The periodic table has many elements and their elemental symbols contain almost every letter in the alphabet except the letter “J.” New elements are still being discovered, and it is quite likely “J” could be assigned as an elemental symbol.In fact, many elements present in the modern periodic table were not part of the original periodic table in 1869. New elements can be categorized and positioned in the existing periodic table. The periodic table was designed to accommodate elements that were discovered later.Here are some fun facts about the periodic table for children (5) (6). The periodic table is a fascinating tool to categorize elements and has interesting facts about it, too. Related: 64 Fascinating And Little Known Science Facts For Kids Facts About The Periodic Table For Kids Therefore, the atomic weight could be subject to change, and the one mentioned on the periodic table is generally considered provisional. However, there could be several undiscovered isotopes of the element. The atomic number (number of protons) of an element will always remain the same.For instance, noble gases tend to become denser as their atomic mass increases. Some element groups could display changes in physical properties as their atomic masses change.Groups of elements typically have the same color scheme and will share many physical properties.Since the number of protons increases, atomic mass and weight increase as you go down a period or across a group, with some notable exceptions.Therefore, the atomic number (the number of protons) will increase as you go down the table. For example, Helium (He) has an atomic number of 2, which is 1 more than the previous element Hydrogen (H). Each element will typically contain one more proton than the one before it.The following interpretations and characteristics of elements can be observed based on their atomic number, atomic mass, and atomic weight.

Color coded periodic table for kids