Solve any five of the following (each question carries 2 marks). 1) Explain the position of Hydrogen in the periodic table. 2) Write a note on isotopes of Hydrogen. 3) Discuss the... Solve any five of the following (each question carries 2 marks). 1) Explain the position of Hydrogen in the periodic table. 2) Write a note on isotopes of Hydrogen. 3) Discuss the trends in atomic & physical properties of elements of Group-4. 4) Write the electronic configuration of the following elements: a) Rubidium b) Barium. 5) Write the biological importance of elements of Group-2. 6) Discuss the four uses of CaCO3.
Understand the Problem
The question is asking to address five specific chemistry-related queries. It covers various topics including the periodic table, isotopes of hydrogen, trends in properties of certain elements, and requires a discussion on the biological importance of specific elements. This indicates that the user is likely studying chemistry and needs help with these topics.
Answer
1) Above lithium in Group 1. 2) Protium, deuterium, tritium. 3) Increasing atomic radius. 4) Rb: [Kr] 5s¹, Ba: [Xe] 6s². 5) Bone health, enzymes. 6) Construction, supplements, antacids, soil conditioner.
- Hydrogen is placed in Group 1 above lithium due to its single electron but is sometimes shown separately because it also shares properties with halogens. 2) The three isotopes of hydrogen are protium, deuterium, and tritium, differing in the number of neutrons. 3) Group-4 elements, such as titanium, zirconium, and hafnium, show increasing atomic radius and decreasing ionization energy down the group. 4) Rubidium: [Kr] 5s¹, Barium: [Xe] 6s². 5) Group-2 elements like calcium and magnesium are essential for bone health and enzyme function. 6) Calcium carbonate is used in construction, as a calcium supplement, in antacids, and in agriculture as a soil conditioner.
Answer for screen readers
- Hydrogen is placed in Group 1 above lithium due to its single electron but is sometimes shown separately because it also shares properties with halogens. 2) The three isotopes of hydrogen are protium, deuterium, and tritium, differing in the number of neutrons. 3) Group-4 elements, such as titanium, zirconium, and hafnium, show increasing atomic radius and decreasing ionization energy down the group. 4) Rubidium: [Kr] 5s¹, Barium: [Xe] 6s². 5) Group-2 elements like calcium and magnesium are essential for bone health and enzyme function. 6) Calcium carbonate is used in construction, as a calcium supplement, in antacids, and in agriculture as a soil conditioner.
More Information
Hydrogen's unique position results from its properties being similar to both Group 1 metals and halogens. Its isotopes are significant in various nuclear applications. Group-4 trends include decreasing ionization energy. CaCO3 has historical importance in architecture.
Sources
- Isotopes of Hydrogen - Plutonium, Deuterium, Tritium with Examples ... - byjus.com
- The Chemistry of Hydrogen - chem.libretexts.org
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