The number of protons in an element is always the same as the atomic number, which is 12 in this case. In a neutral atom (no charge), the number of electrons equals the number of protons, so it will be 12 electrons also. However, the number of neutrons will vary depending on the isotope (atoms of the same element with different numbers of neutrons). There are three isotopes of Magnesium, 24Mg, 25Mg, 26Mg, having 12, 13, and 14 neutrons respectively (12 is the most abundant).
See link below for more information on Magnesium, as well as the related question below that will show you how to find the number of each subatomic particle in any atom.
Beside the fact that Mg2+ is an ION rather than an element, the answer is:
a magnesium ion has 12 neutrons electrons and protons.:).
( Mg) atomic No. is 12,so proton = 12 = 12 electron. Z = P + N = 12 + 12 = 24 SO, N = 24 - 12 = 12
Magnesium has 12 protons, 12 neutrons( in the most abundant isotope) and 12 electrons in the ground state
Magnesium's, or Mg's, atomic number is 12. Therefore, neutral magnesium has 12 protons and 12 electrons. It's most common isotope is 24Mg, which has 24 - 12 = 12 neutrons.
1 5 6
Its 12
the number of proton=the number of electron= 12
the proton number of an atom is the same as the neutron number, therefor there is 12 electrons as well as 12 protons.
Atoms of Magnesium have 12 electrons. Elements in the periodic table with a neutral charge must all have a number of electrons equal to the number of protons in the nucleus. Since Magnesium has an atomic number of 12, and the atomic number is also known as the PROTON number, then it must also have 12 electrons to balance out the charge. Magnesium has an atomic mass of about 24 - the other 12 units of mass being made up of neutrons.
Protons, Neutrons, and Electrons. Inside a proton are three quarks, same for neutron. "Gluons" or force particles hold the quarks together.
FALSE!!!! A neutral atom must have the same number of protons and electrons. The number of neutrons can vary, to form isotopes. When the number of protons and electrons are different, they are no longer atoms but IONS. If we take hydrogen as an example, it forms three isotopes. #1 ; protium ; 1 proton, 0 neutrons and 1 electrons #2 ; deuterium ; 1 proton , 1 neutron and 1 electron #3 ; tritium ; 1 proton , 2 neutrons and 1 electron Notice the protons and electrons are the same number, but the number of neutrons varies, between isotopes.
They are NOT. The number of electrons and the number of neutrons are not linked at all - for instance, an atom of Hydrogen has one proton and one electron and NO neutrons.
1 Proton and 1 electron but no neutrons.
the number of proton=the number of electron= 12
the proton number of an atom is the same as the neutron number, therefor there is 12 electrons as well as 12 protons.
Magnesium has an atomic number of 12, therefore it has 12 protons, and therefore 12 electrons.
Magnesium (Mg) Bottom number is the proton number. Top number is mass number = Protons + Neutrons Therefore no. of neutrons = Top - Bottom number In atom proton number = electron number. However if it was an ion of Mg e.g. Mg+ then its electron number would be 13 and its proton number would be 12. Hope this will help. P.S I gave you the extra info as you will now be able to work out WHY! :D
Any atom of magnesium will have 12 protons.Neutral atoms of Mg-24 will have 12 neutrons and 12 electrons. Mg-25 has 13 neutrons and Mg-26 has 14 neutrons. A magnesium ion will have either 10 or 11 electrons.
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
1 proton and 1 neutron
Atoms of Magnesium have 12 electrons. Elements in the periodic table with a neutral charge must all have a number of electrons equal to the number of protons in the nucleus. Since Magnesium has an atomic number of 12, and the atomic number is also known as the PROTON number, then it must also have 12 electrons to balance out the charge. Magnesium has an atomic mass of about 24 - the other 12 units of mass being made up of neutrons.
Electrons are around the nucleus. Protons and neutrons are in the middle.
Because electrons are very light particles and do not effect the mass, if proton and neutrons are elephant then electrons are ants , how ants effect the mass and weight of elephant ?