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.
Magnesium typically has 12 neutrons. It has an atomic number of 12, which indicates the number of protons (and electrons) in the nucleus. Subtracting the atomic number from the Atomic Mass (24-12) gives the number of neutrons.
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.
A stable magnesium atom has 12, 13 or 14 neutrons. The atom with 12 neutrons is the most common one.
Magnesium typically has 12 nucleons, with 12 protons and 12 neutrons in its nucleus.
The number of neutrons in the nucleus of an element can be calculated by subtracting the atomic number (which is the number of protons) from the atomic mass. For magnesium, the atomic number is 12, and the atomic mass is usually around 24-25. Therefore, the approximate number of neutrons in the nucleus of magnesium is 12-13.
Magnesium has an atomic number of 12, so it has 12 protons. Since Magnesium-26 has an atomic mass of 26, it has 26 - 12 = 14 neutrons.
The mass number is the sum of protons and neutrons in an atom. Since magnesium has 12 protons, a magnesium atom with 14 neutrons would have a mass number of 26 (12 protons + 14 neutrons = 26 mass number).
A stable magnesium atom has 12, 13 or 14 neutrons. The atom with 12 neutrons is the most common one.
12 neutrons
13 neutrons
A magnesium atom typically has 12 neutrons. Magnesium has an atomic number of 12, indicating it has 12 protons which is equal to its number of electrons in a neutral atom. The number of neutrons can be calculated by subtracting the atomic number from the atomic mass of magnesium, which is approximately 24.305 amu.
The isotopes of magnesium differ in their number of neutrons. Magnesium has three stable isotopes: magnesium-24, magnesium-25, and magnesium-26, with varying numbers of neutrons in their nucleus.
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
An Mg2+ ion is a magnesium ion that has a charge of +2, meaning it has lost 2 electrons. The number of neutrons in an Mg2+ ion is the same as in a regular magnesium atom, which is 12 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