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 81 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
Wow, this really help

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Electron atomic and molecular orbitals Electron atomic and molecular orbitals
scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by
Insects Under the Electron Microscope Insects Under the Electron Microscope
Stable isotopes of carbon Stable isotopes of carbon
Potassium feldspar Potassium feldspar
A color-enhanced electron micrograph of circular plasmid molecules A color-enhanced electron micrograph of circular plasmid molecules
Video: Neuron structure and function - sensory neurons, association neurons & motor neurons

For a complete list of videos, visit our video library