This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which event does not occur during the decay of potassium-40 isotopes? A) An electron orbiting ... (Read 30 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
on: Jul 16, 2018
Which event does not occur during the decay of potassium-40 isotopes?
 
  A) An electron orbiting near the nucleus enters into the nucleus and combines with a proton to produce a neutron.
  B) Electrons rearrange, producing x-rays.
  C) A neutron changes to a proton and emits an electron.
  D) A proton is ejected from the nucleus.

Question 2

Where have the oldest dated sand grains been found on Earth?
 
  A) Australia
  B) Canada
  C) The United States
  D) Africa


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

steff9894

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


lidoalex

  • Member
  • Posts: 538
Reply 2 on: Jul 16, 2018
Gracias!

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

An ant under an electron microscope An ant under an electron microscope
potassium potassium
PCV valve operation in the event of a backfire. PCV valve operation in the event of a backfire.
(b) Scanning electron microscopy showing a phagocytic cell in the process of phagocytizing bacteria. ... (b) Scanning electron microscopy showing a phagocytic cell in the process of phagocytizing bacteria. ...
Cretaceous-Tertiary (K-T) event Cretaceous-Tertiary (K-T) event
Which is the most acceptable electron dot structure for N2H2? Which is the most acceptable electron dot structure for N2H2?
Video: Basic rhythm - control centers in medulla oblongata, spirograph and normal tidal cycle

For a complete list of videos, visit our video library