✏️ENEM 2025 PPL | A datação por decaimento radioativo é utilizada para determinar a idade de objetos

Radioactive decay dating is used to determine the age of objects found in archaeological and anthropological expeditions. Commented correction of a chemistry question from the 2025 ENEM PPL SECOND APPLICATION exam, yellow version. This is a detailed solution that follows the official answer key. 👇🏽⬇️👇🏽Videos and Playlists that may help:👇🏽⬇️👇🏽 1)📝ENEM 2025 PPL – CHEMISTRY – DETAILED SOLUTION    • 📝ENEM 2025 BELÉM – QUÍMICA – RESOLUÇÃO DET...   2) ► Playlist of ENEM questions (ordered by subject):    • ✏️ ENEM Questões ordenadas por Assunto e Tema   3) ► Playlists of ENEM questions (ordered from most recent): [2019-2023] [2024-2028]    • 🏆 ENEM (2023 até 2019) 📝Questões ordenadas...   [4) ► Lesson on the topic: [not available] [5) ► +Questions on the topic of the question:    • ► Radioatividade [Físico-Química pt.4]   📂 FREE OPEN FOLDER WITH MATERIALS: Exercise Lists, Summary Maps, Study Guides in CHEMISTRY and much more. [5) ► +Questions on the topic of the question:    • ► Radioatividade [Físico-Química pt.4]   📂 FREE OPEN FOLDER WITH MATERIALS: Exercise Lists, Summary Maps, Study Guides in CHEMISTRY and much more. [5] [5] ► +Questions on the topic of the question:    • ► Radioatividade [Físico-Química pt.4]   📂 FREE OPEN FOLDER WITH MATERIALS: Exercise Lists, Summary Maps, Study Guides in CHEMISTRY and much more. [5] ► +Questions on the topic of the question: [5] ► +Questions on the topic of the question:    • ► Radioatividade [Físico-Química pt.4]   📂 FREE OPEN FOLDER WITH MATERIALS: Exercise Lists, Summary Maps, Study Guides in CHEMISTRY and much more. [5] ► +Questions on https://drive.google.com/drive/folder... ⭐SUPPORT - Become a member of this channel and get benefits:    / @quimicapravaler   Question statement: (ENEM 2025 PPL) Radioactive decay dating is used to determine the age of objects found in archaeological and anthropological expeditions. The amount of radioactive material in these objects is usually very small, but technological development has allowed this technique to be applied with isotopes such as potassium 4019K. The technique is based on the half-life, defined as the time required for the concentration of the element to be reduced to half of its initial concentration. The determination of age can only be done by this method because, in the radioactive decay process, the half-life does not depend on the initial concentration of the element. The following table presents the age of an object estimated by the ratio between the proportion of radioactive potassium concentration (40 19K) and its radioactive decay products. [TABLE] An analyzed granite sample showed 2.5 g of 40 19K and 17.5 g of its radioactive decay products. The estimated age, in years, for this granite sample is: A 1.3 × 109 years. B 2.6 × 109 years. C 3.9 × 109 years. D 1.7 × 1010 years. E 2.1 × 1010 years. Don't waste time ⌚ subscribe to the channel so you don't miss any content! ❤ ►    / @quimicapravaler   Any questions? Leave a comment! ---------------------------------- #chemistryforreal #enem #enemanswerkey