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
Pie
2 years ago
8

What is the definition of the half-life of a radioactive isotope?

Physics
2 answers:
Illusion [34]2 years ago
5 0

Answer:Half-life is the amount of time it takes for the initial mass of the isotope to decompose, by half, into other lighter atoms.

Explanation:Different radioactive isotopes have different half-lives. For example, the element technetium-99m has a half life of 6 hours. This means that is 100 kg of the element is left to decay, in 6 hours, 50kg of the mass will have changed into other elements/atoms. The half-life of uranium-238 is 4.5 billion years while that of polonium-216 is only 0.145 seconds.

Mashcka [7]2 years ago
4 0

Answer:

A. The time it takes for half the parent nuclei in a sample to become

daughter nuclei

:)

You might be interested in
The engine of a 550kg car is producing a net force of 11,000N. What is its acceleration?
finlep [7]

Answer:

Yeda

Explanation:

yshyei5rexwu drift hai used thakare I exam rest watu testing reddy

7 0
3 years ago
Read 2 more answers
A certain atom has 26 protons, 26 electrons, and 30 neutrons. It mass number is?
pishuonlain [190]

The most common atom of iron has 26 protons and 30 neutrons in its nucleus. What are its atomic number, atomic mass, and number of electrons if it is electrically neutral? This atom has atomic number 26, atomic mass 56, and has 26 electrons.

4 0
2 years ago
Read 2 more answers
Which of these is NOT a possible type of energy transformation?
Orlov [11]

to be franc i really think the answer is B

6 0
3 years ago
What question did use of a telescope by hubble answer A) Is earth the center of the universe B) Is the sun the center of the uni
cestrela7 [59]

Answer: C

Explanation:

3 0
3 years ago
Read 2 more answers
Radio waves travel at the speed of light. What is the wavelength of a radio signal with a frequency of 9.45 x 10^7 Hz?
Klio2033 [76]

Answer:

So I never really knew you

God, I really tried to

Blindsided, addicted

Felt we could really do this

But really I was foolish

Hindsight, it's obvious

Explanation:

3 0
3 years ago
Other questions:
  • How can Climate Change impact the formation of Hurricanes?
    10·2 answers
  • According to the article, in which TWO ways is lava similar to volcanic ash?
    14·1 answer
  • Recent technological developments like high-resolution satellite imagery and diagnostic positron emission tomography (PET scans)
    5·1 answer
  • Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to i
    7·1 answer
  • A 2.5kg metal bar is quenched from 800°C by immersion in a closed insulated tank of water containing 50 litres of water initiall
    6·1 answer
  • Please help what is the definition ligthspeed
    13·1 answer
  • Explain how Rutherfords' gold foil experiment explains how this experiment confirms the nuclear model of the atom and the idea t
    15·1 answer
  • Groundwater is desirable for which of the following reasons?
    9·1 answer
  • How much energy is required to increase the temperature of
    9·1 answer
  • What is used to calculate or determine intensity during exercise
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!