Number Of | How Many » Science http://www.numberof.net You Ask! We Count! Fri, 18 Mar 2011 20:30:35 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Number of Neutrons in Neon http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0neon/ http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0neon/#comments Thu, 08 Jul 2010 12:00:15 +0000 Nidia http://www.numberof.net/?p=4100 How many neutrons are there in Neon?

From 10 to 12.

The chemical element Neon has three natural isotopes, and all of them are stable (not radioactive): neon-20, with 10 neutrons, neon-21, with 11 neutrons and neon-22, with 12 neutrons. Neon-20 is the most abundant of them (90.5%), followed by neon-22 (9.2%) and neon-21 (0.3%) (source: “Nature’s Building Blocks: an A-Z Guide to the Elements”).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0neon/feed/ 0 Number of Neutrons in Nitrogen http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0nitrogen/ http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0nitrogen/#comments Wed, 07 Jul 2010 18:00:52 +0000 Nidia http://www.numberof.net/?p=4103 How many neutrons are there in Nitrogen?

From 7 to 8.

Nitrogen has two naturally occurring isotopes: nitrogen-14, with 7 neutrons and nitrogen-15, with 8 neutrons – both isotopes are stable. Nitrogen-14 has an abundance of 99.64%, and nitrogen-15, 0.366%. Earth’s atmosphere is constituted mainly by nitrogen, which is an element of capital importance to all organisms (source: “Biogeochemistry of Wetlands: Science and Applications”).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0nitrogen/feed/ 0 Number of Neutrons in Hydrogen http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0hydrogen/ http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0hydrogen/#comments Wed, 07 Jul 2010 12:35:46 +0000 Nidia http://www.numberof.net/?p=4094 How many neutrons are there in Hydrogen?

From 0 to 2.

Hydrogen has three natural isotopes. Hydrogen-1 – known as protium – doesn’t have any neutrons, and is the most abundant hydrogen isotope (99.985%). Hydrogen-2 has 1 neutron, and is called deuterium (D); its abundance amounts to only 0.015%. Hydrogen-3, or tritium (T), has 2 neutrons, is very rare and radioactive (source: “General, Organic and Biological Chemistry”).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0hydrogen/feed/ 0 Number of Neutrons in Carbon http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0carbon/ http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0carbon/#comments Wed, 07 Jul 2010 08:00:39 +0000 Nidia http://www.numberof.net/?p=4091 How many neutrons are there in Carbon?

From 6 to 8.

The chemical element Carbon has three natural isotopes – i.e., may have three different neutron numbers. The most abundant isotope is carbon-12 (98.89%), with 6 neutrons; carbon-13 has 7 neutrons and is rare (1.11%). Finally, carbon-14, which has 8 neutrons, is radioactive and very rare; this isotope is used in radiocarbon dating (source: “Essential AS Chemistry for OCR”).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0neutrons%c2%a0in%c2%a0carbon/feed/ 0 Number of Moons on Mercury http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mercury/ http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mercury/#comments Mon, 05 Jul 2010 10:30:51 +0000 Nidia http://www.numberof.net/?p=4050 How many moons are there on Mercury?

None.

As described in “The Data Book of Astronomy”, by Patrick Moore, there aren’t any moons on Mercury. In 1974, prior to the Marine 10′s Mercury flyby, it was thought that Mercury had a satellite, due to extreme ultra-violet radiation coming from the planet’s surroundings. Eventually, it was discovered that the supposed moon was in fact a simple star: 31 Crateris.Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mercury/feed/ 0 Number of Moons on Saturn http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0saturn/ http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0saturn/#comments Sun, 04 Jul 2010 13:00:53 +0000 Nidia http://www.numberof.net/?p=4053 How many moons are there on Saturn?

62.

Saturn has 62 known satellites; the largest of them is Titan, with a diameter of 5,150 km. Titan is the second largest moon of the solar system, preceded only by Ganymede (one of Jupiter’s moons). Until 1997, it was thought that the planet had only 18 moons – then, with the help of telescopes and data from the Cassini’s Saturn flyby, new moons were discovered (source: “Probing the New Solar System”, by John Wilkinson).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0saturn/feed/ 0 Number of Muscles in Human Body http://www.numberof.net/number%c2%a0of%c2%a0muscles%c2%a0in%c2%a0human%c2%a0body/ http://www.numberof.net/number%c2%a0of%c2%a0muscles%c2%a0in%c2%a0human%c2%a0body/#comments Fri, 02 Jul 2010 18:24:54 +0000 Nidia http://www.numberof.net/?p=4000 How many muscles are there in the human body?

639.

Even though several books present an absolute number of muscles in the human body, there is no definite answer to this question, due to the existence of different criteria for muscle definition. Be that as it may, a considerable number of authors state there are between 630 to 640 body muscles ‘“ e.g., Dr. J. P. Sharma, in his book “Comprehensive Biology XII”, mentions there are 639 body muscles.Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0muscles%c2%a0in%c2%a0human%c2%a0body/feed/ 0 Number of Protons and Neutrons in Mg http://www.numberof.net/number%c2%a0of%c2%a0protons-and-neutrons%c2%a0in%c2%a0mg/ http://www.numberof.net/number%c2%a0of%c2%a0protons-and-neutrons%c2%a0in%c2%a0mg/#comments Tue, 29 Jun 2010 12:13:17 +0000 Nidia http://www.numberof.net/?p=3959 How many protons and neutrons are there in Magnesium?

12 and 12 to 14.

As described in the book “Nature’™s Building Blocks: an A-Z guide to the elements”, the chemical element Magnesium (Mg) has 12 protons ‘“ which is its atomic number. The number of neutrons, however, may vary from 12 to 14. The number of neutrons in an element defines its isotope. Magnesium has three natural isotopes: magnesium-24 (the most abundant, representing 79% of all Mg), magnesium-25 (10%) and magnesium-26 (11%).Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0protons-and-neutrons%c2%a0in%c2%a0mg/feed/ 0 Number of Moons on Mars http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mars/ http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mars/#comments Tue, 29 Jun 2010 10:00:09 +0000 Nidia http://www.numberof.net/?p=3953 How many moons are there on Mars?

2.

According to the book “The Solar System”, by Michael A. Seeds, Mars has two small moons: Phobos and Deimos. The first one measures 20km x 23km x 28km; the second one has a diameter of 12km. Deimos is 3 times more distant from Mars than Phobos ‘“ should it be observed from Mars, this moon would seem 15 times smaller in diameter than Earth’™s moon.Similar Posts:

]]> http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0mars/feed/ 0 Number of Moons on Jupiter http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0jupiter/ http://www.numberof.net/number%c2%a0of%c2%a0moons%c2%a0on%c2%a0jupiter/#comments Mon, 28 Jun 2010 12:09:59 +0000 Nidia http://www.numberof.net/?p=3917 How many moons are there on Jupiter?

63.

In the book “Jupiter and How to Observe It”, the author John W. McAnally mentions Jupiter has 63 known moons (or satellites). The four largest moons were discovered by Galileo, in 1610 ‘“ they are known as Galilean moons: Io, Europa, Callisto and Ganymede. These four moons have diameters that vary from 3,130 km (Europa) to 5,268 km (Ganymede).Similar Posts:

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