Tritium, 3.All of these, 4. Collecting Cheques/Drafts customers. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. Which of the following is a chemical change? GATE Notes & Videos for Electrical Engineering, Basic Electronics Engineering for SSC JE (Technical). Answers of Which of the following is a radioactive element?a)Sulphurb)Telluriumc)Poloniumd)SeleniumCorrect answer is option 'C'. After 400 days, one gm of the element will be reduced to _____ gm? Which of the following is a radioactive semimetal? Answer verified by Toppr. Join The Discussion. It does not depend on the temperature, concentration or the amount of element, but just depends on the time factor. A) At B) B C) Ge D) Si E) none of the above Name * A. Cadmium B. Thorium C. Radium D. Uranium. 2 A radioactive isotope of carbon has more nucleons than the non-radioactive isotope, 12C 6. The radioactive isotope of carbon was used to develop carbon dating tool, which has made the dating of various relics possible. Online Electronics Shopping Store - Buy Mobiles, Laptops, Camera Online India. NULL. MCQs: The half life period of a radioactive element is 100 days. Uranium, Radium are naturally occurring radioactive elements Atoms with atomic number greater than 82 show the phenomena of radioactivity.Radioactivity … The Actinoids. ... A pure sample of a known element has a very long half-life. 2. D. Tungsten. a. N = A + Z b. N = Z - A c. N = A - Z d. None of the above is correct. OThe number of radioactive atoms in a sample will always remain constant. This table contains the elements that have no stable isotopes. It is considered an important choice for determining radioactive nature. Americium–241 has a half-life of 432 years and decays by emitting alpha particles to produce neptunium. You can study other questions, MCQs, videos and tests for Electrical Engineering (EE) on EduRev and even discuss your questions like Which one of the following is not a radioactive element ? Correct Answer of this Question is : 4. Which of the following is correct regarding radioactive process ? Thorium is the radioactive element, belonging to the class of lanthanides. NULL. Poloniumis a rare radioactive metal discovered by Marie Curie in the late 19th century. How many protons, neutrons and electrons could there be in this radioactive isotope of carbon? The half-life of an element is the time it takes for an average of 50 percent of the atoms in a sample to decay. Atoms of a radioactive sample that did not decay in the first half-life are more likely to decay than they were previously. C. Uranium. Apart from being the largest Electrical Engineering (EE) community, EduRev has the largest solved While radioactive, it emits a high-energy form of radiation, but the particles do not travel far and it decays relatively quickly. Here you will find the General Science Multiple Choice Questions Mcqs Check all that apply. A radioactive isotope: has an unstable atomic nucleus can not form molecules will decay over time into a more stable isotope has unstable electrons The d-and f-Block Elements. This discussion on Which of the following is a radioactive element?a)Sulphurb)Telluriumc)Poloniumd)SeleniumCorrect answer is option 'C'. Answer and Explanation: An isotope is a form of an element that, though it has the same amount of protons, it will have a different number of neutrons. Comment * Related User Ask Questions. Electronics Bazaar is one of best … 12th. A good example of this is tritium, a radioactive isotope of hydrogen naturally present at extremely low levels. by N, which of the following is correct? B. Chromium. O During radioactive decay, atoms break down, releasing particles or energy. Which of the following is a radioactive element?a)Sulphurb)Telluriumc)Poloniumd)SeleniumCorrect answer is option 'C'. Required fields are marked * Comment. Question bank for Electrical Engineering (EE). Can you explain this answer? Uranium, 2. Buy online Mobile Phones, Laptops, Tablets, Cameras & … The percentage of nitrogen in the air is about. Each element is followed by the most stable known isotope and its half-life. Correct Answer of this Question is : 4. In 420 days the radioactivity of a sample decreases by 39 percent. Can you explain this answer? Physics,kinematics.please explain the answer of question? Which one of the following is not a radioactive element ? Methane contributes towards global warming so it is called a _________________ gas. Which of the following is a radioactive element. Select the correct … Answer. The Questions and Answer: Option C . Report Error Copyright © 2019 Sawaal.com | All Rights Reserved. Half-life time of a radioactive element is fifty percent of its average life period. Uranium, 2. Question Bank Solutions 11228. See answers. 2. are solved by group of students and teacher of Electrical Engineering (EE), which is also the largest student Read the poem and answer the following questions. Age of the earth can be determined by radioactive dating. In a {93/41}Nb nucleus, the number of protons, neutrons, and electrons is 5. Which of the following is a radioactive element? soon. D Sea water is a compound. Electronics Bazaar is one of best Online Shopping Store in India. Correct Answer of this Question is : 3. 2.How long will it take for a sample of 100 mg to . Which of the following statements is correct? Which of the following is not a bleaching agent? Important Solutions 3103. A Air is a mixture. Leave a Reply Cancel reply. In which of the following series all the elements are radioactive in nature . Which of the following is a radioactive element, If the valency of Aluminum is 3 and that of Oxygen is 2, then the chemical formula of Aluminum oxide is, View Answer Americium–241 is a radioactive isotope used in domestic smoke detectors. agree to the. A. Cadmium B. Thorium C. Radium D. Uranium Submitted by: Mansoor Ahmed Suhag Everyday Science Mcqs Everyday Science Mcqs. Half-life time of radioactive element is the time required for one half of the radioactive atoms to disintegrate. The one with the two extra neutrons is radioactive and undergoes radioactive decay. This answer has been confirmed as correct and helpful. D) Selenium. Radium, 3.Thorium, 4. C Methane is a compound. Which among the following elements is radioactive? NULL. 262 Views. What is the radius of an atom used to measure? Thorium is a dark grey radioactive metallic element of the actinide series. Correct answers: 1 question: Which of the following statements about radioactive decay is true? B Ammonia is a compound. A. Cobalt. Half-life is the amount of time required, for half quantity of radioactive element to decay. - Chemical Engineering Mcqs - … Choose the most correct option. Which of the following is a radioactive element ? Electronics Bazaar is one of best Online Shopping Store in India. B) A very high temperature is required to initiate a nuclear fission reaction C) The energy released from the sun is the result of a nuclear fission reaction D) Carbon control rods are used to absorb neutrons in a nuclear fission reaction 2. Textbook Solutions 10120. Buy online Mobile Phones, Laptops, Tablets, Cameras & … If the ratio is above the value of 1.5 for any element, that means the element is radioactive. Vanadium is a toxic very hard silverywhite metallic element. Cadmium, 5. Granting Loans. The answer of Which one of the following is not a radioactive element ? By continuing, I agree that I am at least 13 years old and have read and It is an element with symbol Po and atomic number 84. C. Facilitating import of goods. Non-metals generally contain ___ electrons in their outermost shell. is done on EduRev Study Group by Electrical Engineering (EE) Students. Minerals (like monozite, thorite) are rich in thorium … Radium, 3.Thorium, 4. Consider the following statements 1. C) Tellurium. bell outlined. Cadmium, 5. are solved by group of students and teacher of Electrical Engineering (EE), which is also the largest student community of Electrical Engineering (EE). Which of the following is not a primary function of a Bank? A) Sulphur. 1 Which statement is not correct? 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