Question
Download Solution PDFWhich of the following is a 's' block element?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Rubidium.
Key Points
- Rubidium (Rb) is an element that belongs to the s-block of the periodic table.
- It is an alkali metal and is found in Group 1 of the periodic table.
- Rubidium has an atomic number of 37 and is characterized by having a single electron in its outermost s-orbital.
- Alkali metals, including Rubidium, are known for their high reactivity and are typically stored under oil to prevent reaction with air or water.
Additional Information
- s-block Elements
- The s-block elements are those in which the outermost electrons occupy an s-orbital. These elements are found in Groups 1 and 2 of the periodic table.
- Group 1 elements are known as alkali metals and include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr).
- Group 2 elements are known as alkaline earth metals and include Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).
- These elements are characterized by their high reactivity, especially with water, and they form basic (alkaline) solutions when they react with water.
- d-block Elements
- The d-block elements are those in which the outermost electrons occupy a d-orbital. These elements are found in Groups 3 to 12 of the periodic table.
- They are often referred to as transition metals and include elements like Iron (Fe), Copper (Cu), and Gold (Au).
- Transition metals are characterized by their ability to form variable oxidation states and colored compounds.
- They are also known for their catalytic properties and high conductivity of electricity and heat.
Last updated on Jun 6, 2025
-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
-> The SSC GD Merit List is expected to be released soon by the end of April 2025.
-> Previously SSC GD Vacancy was increased for Constable(GD) in CAPFs, SSF, Rifleman (GD) in Assam Rifles and Sepoy in NCB Examination, 2025.
-> Now the total number of vacancy is 53,690. Previously, SSC GD 2025 Notification was released for 39481 Vacancies.
-> The SSC GD Constable written exam was held on 4th, 5th, 6th, 7th, 10th, 11th, 12th, 13th, 17th, 18th, 19th, 20th, 21st and 25th February 2025.
-> The selection process includes CBT, PET/PST, Medical Examination, and Document Verification.
-> The candidates who will be appearing for the 2025 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.
-> UPSC Prelims Result 2025 Date Out soon @https://upsconline.nic.in/