The modern periodic table is one of the most important parts of Chemistry on which the entire understanding is based. The periodic table is one of the first things students need to grasp to have an easy understanding of the rest of the concepts in Chemistry. Edureify brings to all a detailed article on the periodic table to help students grasp the concept.

What is the Periodic Table?

To go by the bookish definition,

“Periodic table is the organized array of all the chemical elements in order of increasing atomic number, i.e., the total number of protons in the atomic nucleus.”

Some important and quick points regarding the Modern Periodic Table

Here are some important facts regarding the Modern Periodic Table’s founder-

 Points Particulars Who invented the modern periodic table? Henry Moseley When was the invention made? 1913 Who was first able to arrange all the known elements? Dmitri Mendeleev- gave the Mendeleev’s periodic law Who grouped the elements into triads? Dobereiner Who gave the law of octaves? Newlands

Mendeleev Periodic Table

Dmitri Mendeleev, the father of the periodic table, had first put forth the known elements and arranged them in a tabular format. Mendeleev began his journey of arranging the periodic table in 1869.

The vital difference between Mendeleev’s periodic table and the modern periodic table that is an important part of all the competitive exams is-

“Mendeleev had designed his periodic table based on increasing atomic mass, while the modern periodic law is based on the increasing order of the atomic numbers.”

What is the modern periodic law?

According to the modern periodic law, the physical and chemical properties of the elements are the periodic functions of their atomic numbers.

Some of the features of the modern periodic law are-

• The periodic table is arranged in a manner where a row is a period and a column is a group
• The elements are grouped from left to right and top to bottom in their increasing atomic number order
• The elements in the same group have the same valence electron configuration and similar chemical properties
• On the other hand, elements in the same period have an increasing number of valence electrons where the number of energy sub-levels per energy level increases as the energy level of the atom increases

List of first 50 elements of the periodic table

 S.no Symbol Name 1. H Hydrogen 2. He Helium 3. Li Lithium 4. Be Beryllium 5. B Boron 6. C Carbon 7. N Nitrogen 8. O Oxygen 9. F Fluorine 10. Ne Neon 11. Na Sodium 12. Mg Magnesium 13. Al Aluminum 14. Si Silicon 15. P Phosphorus 16. S Sulphur 17. Cl Chlorine 18. Ar Argon 19. K Potassium 20. Ca Calcium 21. Sc Scandium 22. Ti Titanium 23. V Vanadium 24. Cr Chromium 25. Mn Manganese 26. Fe Iron 27. Co Cobalt 28. Ni Nickel 29. Cu Copper 30. Zn Zinc 31. Ga Gallium 32. Ge Germanium 33. As Arsenic 34. Se Selenium 35. Br Bromine 36. Kr Krypton 37. Rb Rubidium 38. Sr Strontium 39. Y Yttrium 40. Zr Zirconium 41. Nb Niobium 42. Mo Molybdenum 43. Tc Technetium 44. Ru Ruthenium 45. Rh Rhodium 46. Pd Palladium 47. Ag Silver 48. Cd Cadmium 49. In Indium 50. Sn Tin

The periodic table is a vital part of not just understanding Chemistry, but the concept is often a part of many competitive government exams in India. Edureify, therefore, has allotted a particular section for Chemistry where candidates of various competitive exams like NEET and JEE, and students of classes 8-10 of CBSE board to help them better understand and grasp the concepts of Chemistry.

Check out the Edureify website and also download the Edureify AI Learning App to learn more about the Periodic Table and other important concepts of Chemistry. Students and aspirants can also take numerous mock tests, and practice quizzes, and get hold of tons of flashcards and study materials for better preparation for their Chemistry exam with Edureify.

### Some FAQs regarding the Modern Periodic Table-

1. Who invented the Modern Periodic Table and when?

Henry Moseley invented the modern periodic table in 1913.

2. What is the Mendeleev periodic law?

Unlike the Modern Periodic Law, the Mendeleev Periodic Law is based on increasing atomic masses.

3. How many elements are there in total in the periodic table?

There are a total of 118 elements in the periodic table.

4. What is the symbol of Titanium?

The symbol of Titanium is Ti.

5. Where can I get all the materials regarding the periodic table for exam preparation?

Edureify! Students will get all the important study materials regarding the periodic table and other important chemistry notes on Edureify.