Actinides: History, Occurence, Properties, and Uses
Actinides are a group of fifteen metal elements with atomic numbers ranging from 89 to 103. The name of the series is derived from actinium, the element that appears at … Read more
Periodic Table
Transition Elements – General Properties and Uses
The transition metals, which are located in the middle of the periodic table, make up the largest group of elements there. Additionally, the lanthanides and actinides, two rows of elements … Read more
Lithium- Properties, Uses, Facts, Toxicity, and Safety
In the periodic table, lithium is the first alkali. Lithium is a rare element that is mostly found in molten rock and in very small amounts in saltwater. It has … Read more
Periodic Table – Multiple Choice Questions (MCQ)
A. How many periods and groups are present in the periodic table? Answer: 1 Modern periodic table consists of 7 horizontal rows known as periods and 18 vertical columns named as … Read more
Periodic Table of Elements- Definition, Terms, 118 Elements
A vital component of contemporary chemistry is the periodic table. The periodic table was designed to provide a highly informative representation of the chemical elements. Each element is placed in … Read more
Comparison of properties of Alkali and Alkaline Earth Metals
What are Alkali metals? Elements of group IA are called alkali metals. The word alkali is derived from the Arabic word alquli, meaning ashes of plants, because the plant ashes … Read more
Sulfur Element- History, Properties, Uses, Reactions, Safety
Sulfur is multivalent non-metal, abundant, and odorless. Pure sulfur is a tasteless, odorless, brittle, pale yellow solid that is a poor conductor of electricity and insoluble in water. It can … Read more
Nitrogen Element- Definition, Occurrence, Properties, Uses, Effects
The element Nitrogen belongs to Periodic Table Group 15. It is a nonmetallic element that accounts for approximately 78 percent of the Earth’s atmosphere. It exists in the form of … Read more
Chlorine Element- Definition, Properties, Reactions, Uses, Effects
The element Chlorine is the halogen located in group 17 in the periodic table. Chlorine is the chemical element that constitutes about 0.017 percent of the earth’s crust. Chlorine is … Read more