1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
diamong [38]
4 years ago
14

Which of these materials will decay the fastest to one-fourth of its original amount?

Geography
1 answer:
gtnhenbr [62]4 years ago
6 0
The elements listed in the choices are radioactive materials. These materials are very unstable because of the high neutron-to-proton ratio in the nucleus. Because of this, they spontaneously undergo nuclear reactions by giving off sub-particles in order to lower the ratio. They emit radiation in the form of alpha, beta or gamma. 

Half-life is the length of time it needs to completely react half of the original amount. For example, it would take Bismuth 60.5 seconds to use up half of its amount. Therefore, the lower the half-life the faster the reaction is and the lesser the residual amount will be. With that being said, the answer would be Bismuth because it only takes seconds.
You might be interested in
The causes and the effects of ozone depletion<br>​
Butoxors [25]

Answer:

the answer is this will cause the suns rays to go through the earths atmosphere  and heat up the planet causing  it to become hotter.

Explanation:

we are causing this by our factory's and cars pollution.Causes : chlorofluorocarbon (CFCs), halons, and other compounds deplete the ozone layer.

5 0
3 years ago
Alliyah and Zarduk Tors are tired of the unrest in their country. Over dinner one night, they discuss the possibility of leaving
Sloan [31]
The UK would be the best because they elect an all powerful person, I think.
6 0
4 years ago
Read 2 more answers
What information does this political map show? Check all that apply. major cities neighboring countries bodies of water internat
skelet666 [1.2K]

Answer:

major cities

bodies of water

international borders

Explanation:

The political maps are type of specialized maps that are showing the reader of the map the countries, be it in the whole world, in a region, or in a smaller area.

These maps are always showing the international borders between the countries, which is actually its main purpose, differentiation of the countries and representation of their borders.

Very often, the major cities tend to be represented as well, and it can only be the capital cities, or cities that are very large and important.

The major bodies of water too tend to be represented, as the borders between the countries often go through a water body, or the water bodies are surrounding a country.

Every country is usually depicted with different color, so that the reader of the map is able to differentiate the countries much more easily.

7 0
4 years ago
Though oil is plentiful in Africa, few Africans work in the oil fields. Why
sergey [27]

Answer:

Lack of technocrats.

Explanation:

There is a widely known phrase in mining industry in Africa, its called the "resource curse". In countries like Nigeria, which produces mammoth amount of Oil all year round, the proceeds from oil is not evenly distributed to better the lives of the masses. Profits derieved from oil is expected to help fund education and training of expats. It is not the case. Thereby, we hear of the oil curse.

It is widely believed and statististically proven that Africa lacks adequate and capable technocrats to harness its vast resources.

Africa owns the resources and the West have the brains to harness them. The Western countries have the right technologies and financial capabilities to explore and produce oil in Africa.

Africa is not as technologically bouyant as the West and does not have the right structure to tap its vast oil reserves. Technologies have to constantly be imported from foreign countries. Most companies believes that it is cheaper to import foreign technocrats with an excellent track record than to start training new ones and deploy them to work in their various climes.

Although, there has been a rigorous drive through indigenous policies to bring up more Africans into the oil industry.

7 0
3 years ago
Read 2 more answers
Where can you find the amazon lily in south america?
sertanlavr [38]
<span>centeral south america or in africa</span>
6 0
3 years ago
Other questions:
  • The area of the circle above is 1,962.5 units2. What is the circumference of the circle? Use = 3.14.
    15·1 answer
  • What are the general atmospheric conditions behind a cold front?
    9·1 answer
  • Which river drain all of the land between rocky and appalachian mountains
    11·2 answers
  • Which of the following statements is true?
    12·1 answer
  • How can rivers provide resources?
    6·1 answer
  • Which of these climates is most commonly found in canada? arctic subarctic humid continental marine west coast
    12·1 answer
  • According to the map above, which language family is most commonly used in the country of China?
    6·1 answer
  • Write short notes on:
    15·1 answer
  • Sex ratios of births are skewed if they differ significantly from the naturally occurring human birth ratio of
    13·1 answer
  • Which continent has the most time zones? Provide a reason for your answer​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!