« previous next »

Author Question: The half-life of a radioactive element is the time it takes for: A) half of the radioactive atoms ... (Read 83 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
on: Jul 27, 2018
The half-life of a radioactive element is the time it takes for:
 
  A) half of the radioactive atoms to double themselves.
  B) half of the radioactive atoms to decay into isotopes.
  C) the radioactive atoms to increase by half of its initial quantity.
  D) the radioactive atoms to increase to 1.5 times of its initial quantity.

Question 2

Which of the following is true of meteors?
 
  A) They are not stars.
  B) They orbit Terrestrial planets.
  C) They are composed of frozen water.
  D) They do not contain rock or metal.


TINA

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Life of a Medical School Student Life of a Medical School Student
Life cycle of Plasmodium Life cycle of Plasmodium
Shy children often have a high arousal level in novel social situations. Over time, parents can help ... Shy children often have a high arousal level in novel social situations. Over time, parents can help ...
Half-life formula Half-life formula
A field study of guppy life history evolution. A field study of guppy life history evolution.
Life cycle of Dictyostelium discoideum, a cellular slime mold Life cycle of Dictyostelium discoideum, a cellular slime mold
Video: Medullary osmotic gradient: countercurrent multiplier, urea recycling & vasa recta countercurrent exchange

For a complete list of videos, visit our video library