Magnesium, an element with 12 protons, does not have a fixed number of neutrons. It exists as many isotopes (differing versions of the same element with the same number of protons, but a different number of neutrons), three of which are Mg-24, Mg-25, and Mg-26. [Atomic symbol-Atomic Mass] To find the number of neutrons, take the atomic number from the atomic mass: for example, 26 - 12 = 14. This means Mg-26 has 14 neutrons. However, to answer your question, the most common isotope of Magnesium is Mg-24. This is the case for most elements up to and including atomic number 20; the number of neutrons equals the number of protons. So; the most common isotope of Magnesium, Mg-24, with a relative abundance of about 79%, has 24 - 12 = 12 neutrons.
There are many different isotopes of magnesium, so it is impossible to tell which isotope you are talking about, therefore, making it impossible to answer how many nuetrons there are in a magnesium isotope.
The number of neutrons would depend on what isotope you're dealing with- the number of protons is what stays constant across all atoms of the same element. The average atomic mass of magnesium is about 24.3, meaning that the average number of neutrons would be about 12.3.
This is, essentially, a non-answer, since no atom of magnesium can possibly contain 12.3 neutrons. If you select a stable atom of magnesium at random, the odds are about 80% that it has 12 neutrons and about 10% each that it has either 13 or 14.
There are three isotopes of Magnesium, 24Mg, 25Mg, 26Mg, having 12, 13, and 14 neutrons respectively.
There are three isotopes of Magnesium, 24Mg, 25Mg, 26Mg, having 12, 13, and 14 neutrons respectively.
Got it from another Wikianswer.
Magnesium has 12, 13, 14 neutrons depending on the isotope.
Natural magnesium has 12, 13 or 14 neutrons depending on the isotope.
Magnesium has 12 protons; tne number of neutrons is 12, 13 or 14 depending on the isotope.
12 neutrons
A stable magnesium atom has 12, 13 or 14 neutrons. The atom with 12 neutrons is the most common one.
the best answer is 12
Anywhere from 36 to 38, however, this is assuming you are talking about neutral atoms. The variation comes from the different stable isotopes of Magnesium, of which there are three.
Manesium 24 has 12 electrons, protons and neutrons.
Atomic # : 12 Mass Number : 24 # of Protons : 12 #of Neutrons : 12 # of Electrons : 12
12 neutrons
13 neutrons
A stable magnesium atom has 12, 13 or 14 neutrons. The atom with 12 neutrons is the most common one.
Number of neutrons = Atomic weight - Atomic number (number of prtons) The atomic number of magnesium is 12; the standard atomic weight is circa 24,3. But magnesium has many isotopes (three are natural) and the number of neutrons is variable in the isotopes - from 7 to 28. The most common natural isotope, 24Mg, has 12 neutrons.
the best answer is 12
There are many different isotopes of magnesium but: 24Mg is stable with 12 neutrons 25Mg is stable with 13 neutrons 26Mg is stable with 14 neutrons
Magnesium (Mg), number 12 on the periodic table, has 12 neutrons.
Number of neutrons = Atomic weight - Atomic number (number of prtons) The atomic number of magnesium is 12; the standard atomic weight is circa 24,3. But magnesium has many isotopes (three are natural) and the number of neutrons is variable in the isotopes - from 7 to 28. The most common natural isotope, 24Mg, has 12 neutrons.
Natural isotopes of magnesium have 12, 13 and 14 neutrons.
The "25" is the mass number, which is the sum of the number of neutrons and protons. We don't know how many neutrons there are, but we do know how many protons magnesium has. The atomic number of an element is the same as the number of protons, so locating a Periodic Table, magnesium is number 12, which means 12 protons. If mass number = number of protons + number of neutrons, then number of neutrons = mass number - number of protons (or atomic number). So 25 - 12 = 13 neutrons in 25Mg.
12 protons, 12 electrons, 12 neutrons
there are 12 neutrons in magnesium it is neutral