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A magnesium atom has 12 protons and 12 neutrons what is its mass number?
Wiki User
∙ 14y ago
The atomic number of magnesium is 12. Its nucleus must contain 12 protons and no electrons. The atomic number of an atom is determined by the number of protons. Electrons are not in the nucleus.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoMass number is the sum of the atomic number and the neuron,so the mass number in this problem is 24.
Wiki User
∙ 11y agoMg has 12 protons. So the mass of Mg-24 (the isotope with 12 protons and 12 neutrons) will be 24 amu.
Wiki User
∙ 11y ago1 neutron only
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An isotope of iron has 26 protons and 32 neutrons what is the mass number?
An unknown element contains 24 protons, 21 electrons,and has mass number 54
How many neutrons are present in a magnesium atom with a mass number of 24?
12 neutrons. Since the atomic number of Mg is 12 (which means Mg atom has 12 protons, and 12 electrons) and the mass number of the isotope is 24 (which means 24 nucleons, or 24 protons and neutrons in total), we derive the number of neutrons by 24 - 12 = 12.
What is equal to the total number of protons and neutrons?
If you add the number of protons to the number of neutrons in an atom, you have calculated that atom's atomic mass.
N atom has 7 protons and a mass number of 14 What is the number of neutrons in an atom of N?
Unless N is a isotope it will have the same amount of neutrons as protons
What is the mass number of a atom?
the mass number is number of protons in an atom, plus the number of neutrons.
In a magnesium atom where are the protons and neutrons?
In an atom protons and neutrons are located in the atomic nucleus.
What is the mass number of a magnesium atom with 14 neutrons?
The mass number is the number of protons plus neutrons. Magnesium is element number 12, so it has 12 protons. Its mass number with 14 neutrons is 12 + 14 which is 26.
What element has 12 electrons and 12 protons and 14 neutrons?
This would be magnesium, based on the number of protons. Since the protons is equal to the number of electrons it is a neutral atom. Given the number of protons in the atom, the isotope would be magnesium-26.
The most stable isotope of an atom with 12 protons probably has neutrons?
Mass of protons + Mass of neutrons + mass or electrons - Binding energy of the atom. Do not forget to subtract the binding energy. If you teacher never mentioned this, then he/she is wrong. You always have to subtract the binding energy to find the real mass.
How many neutrons and protons are in Magnesium 26?
Manesium 24 has 12 electrons, protons and neutrons.
What are the protons neutrons and electrons for magnesium atom?
Atomic # : 12 Mass Number : 24 # of Protons : 12 #of Neutrons : 12 # of Electrons : 12
How many protons and neutrons are in Mg?
The number of protons (p+) in the nuclei of an element's atoms is the atomic number of the element. In this case, the atomic number of magnesium is 12. In a neutral atom, the number of electrons (e-) equals the number of protons. So all neutral magnesium atoms have 12 protons and 12 electrons. Isotopes of an element differ in the number of neutrons (n0).There are three stable isotopes of magnesium (Mg) identified by their mass numbers; magnesium-24, magnesium-25, and magnesium-26. The mass number is the sum of protons and neutrons in the nucleus of an atom. To determine the number of neutrons, subtract the atomic number from the mass number. (mass number - atomic number = no. of neutrons)Magnesium-24: 24 - 12 = 12; An atom of Mg-24 has 12 p+, 12 e-, and 12 n0.Magnesium-25: 25 - 12 = 13; An atom of Mg-25 has 12 p+, 12 e-, and 13 n0.Magnesium-26: 26 - 12 = 14; An atom of Mg-26 has 12 p+, 12 e-, and 14 n0.
What is the number of charged protons neutron and electron in magnesium?
Each magnesium atom has 12 electrons and 12 protons (which are always charged), because magnesium has an atomic number of 12. In order to find the number of neutrons, the atomic mass number must be known. The number of neutrons can be determined by subtracting the number of protons from the atomic mass number.
What do protons determine about an element?
The protons of an element determine the atomic number, also known as the proton number. Do not confuse this with mass number which is the number of protons and neutrons.
What element has 12 electrons 12 protons and 14 neutrons?
This would be magnesium, based on the number of protons. Since the protons is equal to the number of electrons it is a neutral atom. Given the number of protons in the atom, the isotope would be magnesium-26.
Is an atom with 12 protons 12 electrons and 12 neutrons an ion?
No. The number of protons and electrons is the same, resulting in a neutral atom (magnesium in this case). In order to be an ion the number of protons and electrons must be different.
An isotope of iron has 26 protons and 32 neutrons what is the mass number?
An unknown element contains 24 protons, 21 electrons,and has mass number 54
