Reference Article

from Wikipedia, the free encyclopedia

Radioactive decay

Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles (radiation).

Decay is said to occur in the parent nucleus and produces a daughter nucleus.

This is a random process, i.e. it is impossible to predict the decay of individual atoms.

Note: This article excerpts material from the Wikipedia article "Radioactive decay", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-09-30 at 7:33 pm EDT

Farming Revolution in South Africa

Farming Revolution in South Africa

Deutsche Welle (Feb. 20, 2012) A new project in South Africa is taking organic waste that would otherwise be left to simply decay in garbage dumps and processing it in a special facility belonging to the South African company Reliance. There, it is converted it into microbiological compost. The project prevents some 100,000 tons of methane gas being emitted into the atmosphere each year. In addition, the compost helps to improve the quality of the soil, makes plants more robust and helps farmers cut down on the use of pesticides. It's also helping South Africa tackle one of its biggest problems: the massive use of chemical fertilizers in the country has made the ground infertile, caused soil erosion and led to contaminated water.
Powered by NewsLook.com
Scientists Reveal Stone Age Man's Sweet Tooth

Scientists Reveal Stone Age Man's Sweet Tooth

Reuters - Innovations Video Online (Feb. 12, 2014) Scientists say they have identified the earliest signs of tooth decay in humans, from the remains of Stone Age teeth found in Morocco. The findings suggest that people living in the area between 13,500 and 15,000 years ago may have been storing and eating plants rich in carbohydrates and sugar, several thousand years earlier than previously thought. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
California Bill Would Put Warning Labels On Soda

California Bill Would Put Warning Labels On Soda

Newsy (Feb. 14, 2014) A proposed bill in California would require labels warning of "obesity, diabetes and tooth decay" on soda bottles and fountains. Video provided by Newsy
Powered by NewsLook.com
Container Leaking Gallons of Radioactive Sludge Daily

Container Leaking Gallons of Radioactive Sludge Daily

Newsy (Feb. 16, 2013) An underground container at a nuclear facility south of Seattle is leaking up to 300 gallons of radioactive sludge daily.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins