A radioactive element with a half-life of 1,000 years, and starting mass of 20 grams, will need 2,000 years to decrease to 5 grams.
Explanation:
The radioactive elements all have a specific half-life. Each element's half-life is well known, and they are used by scientists of numerous fields as they are excellent for determining the age of a particular item, be it or organic or non-organic nature. In this case, we have a radioactive element with a half-life of 1,000 years, and starting mass of 20 grams.
The half-life basically means that half of the mass of an element is lost during a particular period of time. For the element in question we need to find out how much time will be needed for it to decrease to 5 grams. In order to get to the result, we just need to add 1,000 years on every decrease of half of the mass:
20/2 = 10
10/2 = 5
So in 1,000 years, the element in question will decrease to 10 grams, and in further 1,000 years (2,000 cumulatively) it will decrease to 5 grams.
Learn more about radioactive decay brainly.com/question/9796067
#learnwithBrainly
Indian subcontinent was the source of major religions including Hinduism, Jainism Buddhism and Sikhism. We have listed below the religions with the most followers in order: (1) Christianity: About 2.3 billion followers. About 50% of Christians are Roman Catholics.
Answer:
Calculate the mass of 2.75 moles of ammonia.
Explanation:
Answer:
I need more information and I just did this 5 DAYS AGO!!
The correct answer is - True.
Southeast Asia is a region with very big potential. The region, in general, is in a developing stage and there's lot of things that need to be improved. The improvement of the movement of people, goods, and ideas through the region is crucial for the region's development. That is actually the purpose why ASEAN was formed, to make the countries collaborate, support each other, improve their economy, allow people, trade,ideas, technology to move in the region much more easily for the benefit of all nations in this part of the world.
