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
leva [86]
1 year ago
8

A 50.0 mg sample of iodine-131 was placed in a container 32.4 days ago. if its half-life is 8.1 days, how many milligrams of iod

ine-131 are now present?
Chemistry
1 answer:
sertanlavr [38]1 year ago
7 0

3.124mg of I-131 is present after 32.4 days.

The 131 I isotope emits radiation and particles and has an 8-day half-life. Orally administered, it concentrates in the thyroid, where the thyroid gland is destroyed by the particles.

What is Half life?

The time required for half of something to undergo a process: such as. a : the time required for half of the atoms of a radioactive substance to become disintegrated.

Half of the iodine-131 will still be present after 8.1 days.

The amount of iodine-131 will again be halved after 8.1 additional days, for a total of 8.1+8.1=16.2 days, reaching (1/2)(1/2)=1/4 of the initial amount.

The quantity of iodine-131 will again be halved after 8.1 more days, for a total of 16.2+8.1+8.1=32.4 days, to (1/4)(1/2)(1/2)=1/16 of the initial quantity.

If the original dose of iodine-131 was 50mg, the residual dose will be (50mg)*(1/16)=3.124mg after 32.4 days.

Learn more about the Half life of radioactie element with the help of the given link:

brainly.com/question/27891343

#SPJ4

You might be interested in
On a cool morning, Uyen’s breath can form a cloud when she breathes out. Which changes of state are most responsible for Uyen se
Dima020 [189]
Condensation because condensation is a process of freezing
8 0
3 years ago
Read 2 more answers
Atoms with_____or less electrons in the outermost level tend to lose electrons
MA_775_DIABLO [31]

Answer:

Atoms with<u>2</u>or less electrons in the outermost level tend to lose electrons

8 0
2 years ago
Liquid nitrogen is used for: electrosurgery cryosurgery laser surgery
Otrada [13]
Cryosurgery. You automatically know this because 'cryo' means ice or something cold, thus you can assume that it is that
4 0
3 years ago
How many mmHg are there in 5atm
natali 33 [55]
There is 3800 mmHg in 5 atm
7 0
3 years ago
Sunlight, when viewed through a prism or a diffraction grating, shows all of the colors of visible light. This is an example of
nata0808 [166]
A spectrum that includes all colors and doesn't have
any gaps in it is a continuous spectrum.
8 0
3 years ago
Other questions:
  • Which reaction illustrates the conservation of matter during a redox reaction
    10·1 answer
  • Which statements describe inorganic compounds?
    15·1 answer
  • What is the oxidation state of Fe(s)
    9·1 answer
  • A sample of neon occupies a volume of 752 ml at 25 0
    5·1 answer
  • What is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration?
    14·2 answers
  • Vitamin C has the formula CxHyOz. You burn 0.486 g of the compound in a combustion analysis chamber and isolate 0.728 g of CO2 a
    14·2 answers
  • Which of these elements could be formed at the anode when a molten salt is electrolysed?
    9·2 answers
  • Please help me I will mark you as BRAINLIST
    6·1 answer
  • Which of the following is a INCORRECT ionic compound formula? <br> MgO<br> Na20<br> MgCl<br> NaCl
    12·1 answer
  • Which question should you ask to find out the length of a planet's year?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!