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The sulfide ion, S2-.

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A sodium atom has a mass number of 23 Its atomic number is 11 How many electrons does it have if it is not an ion?

If the sodium atom is neutral (not an ion), it will have the same number of protons (11) as electrons. Therefore, a sodium atom with an atomic number of 11 will have 11 electrons when it is not an ion.


What is the mass number of an ion with 105 electrons 157 neutrons and a 1 charge?

You mean a charge of +1? That would mean that it has 106 protons. That element is seaborgium. The atomic mass, however, can be calculated by a combination of protons and neutrons. 106+157=263. The particle you speak of, seaborgium 157, has an atomic mass of 263.


An oxide ion formed from an oxygen -18 atom contains exactly how many protons neutrons and electrons?

The isotope oxygen-18 has the mass number of 18. The atomic number of oxygen is 8, so all of its atoms, regardless of isotope, have 8 protons. In a neutral oxygen atom the number of protons equals the number of electrons, so it has 8 electrons. The number of neutrons equals the mass number minus the atomic number, which for oxygen-18 is (18 - 8), so there are 10 neutrons.


What is the atomic number of 13 protons and 10 electrons?

Al3+ ion: because Aluminium is (atom)number 13 in the periodic system, so it has 13 protons. If 10 of them have counter-parting electrons then 3 positive proton charges are left uncompensated (by missing 3 electrons from the outer 'shell' or 3 valency electrons) So the ion charge is 3+.


What is the formula to get the number electrons?

First you would calculate the number of protons... the number of protons = the total mass number then the number of protons should = the nummber of electrons(unless their is a number in front of the element like +1) therefore= # of protons = # of electrons

Related Questions

What is the identity of an ion with an atomic number is 16 and mass 33 and 18 electrons?

The ion with an atomic number of 16, mass 33 and 18 electrons is the sulfide ion S2-


What is the mass of an ion with 107 electrons?

The mass of an ion with 107 electrons would depend on the specific element of the ion. You would need to know the atomic number of the element to calculate the mass accurately using the atomic mass of the element.


Why do you calculate the number of electrons by the atomic mass and number?

You calculate the number of electrons by the atomic mass and number because elements have the same number of electrons as they do protons. The atomic number tells you the number of protons, which is also the number of electrons in a neutral atom. By using the atomic mass to find the number of neutrons, you can determine the overall charge and number of electrons in an atom.


A sodium atom has a mass number of 23 Its atomic number is 11 How many electrons does it have if it is not an ion?

If the sodium atom is neutral (not an ion), it will have the same number of protons (11) as electrons. Therefore, a sodium atom with an atomic number of 11 will have 11 electrons when it is not an ion.


Does the atomic number changes when an ion is formed?

No, the atomic number remains the same when an ion is formed. The atomic number is determined by the number of protons in an atom, which does not change when an atom becomes an ion by gaining or losing electrons.


An ion of iron has an 26 protons 30 neutrons and 23 electrons. What are its atomic number atomic mass and net charge?

Atomic number : 26Atomic mass : 55.845 Net charge : +3


How do you calculate the number of protons neutrons and electrons of an atom?

The charge of an ion can be calculated by adding up the protons and subtracting the electrons. When oxygen with 8 protons has 8 electrons it is neutral, when it has 7 electrons it is positively charged.


An Ion with a mass of 209 and atomic number of 84 and net charge of 4 plus?

The ion is a lead ion with a 4+ charge. Its atomic number is 84, and its mass number is 208 (since the mass number is one less than the atomic mass for this particular ion).


An ion with 5 protons and 6 neutrons has an atomic number of?

When considering the atomic number, the only information that we need is the number of protons. To know if the particle is an ion, has more or less electrons, how many neutrons, etc - will not change the atomic number. The atomic number is the same as the number of protons, so in this case, the atomic number of an atom (or ion, doesn't matter) with 5 protons is 5.


How do you solve for neutrons?

You need to know the charge on the atom or ion. The mass number is completely irrelevant if you have the atomic number.The atomic number tells you the number of protons in the nucleus.If the atom is neutral, then it has as many protons as electrons, and so the number of electrons equals the atomic numberIf the atom is charged, and is thus called an ion, than take the atomic number and subtract the charge from it to give the number of electrons.For instance, if you have a sodium ion with charge +1 (Na+), then the number of protons is equal to 11 (the atomic number), and the number of electrons is11 - 1 = 10If instead you had a chlorine ion with charge -1 (Cl-), then the number of protons is equal to 17 (the atomic number), and the number of electrons is17 - -1 = 18See the Related Questions to the left for more information about how to count the particles of an atom.


How many subatomic particles does an ion of calcium with an atomic number of 20 and an atomic mass of 40 hve?

atom have: 20 protons,20 electrons and20 neutrons ion have: 20 protons 18 electrons( metals lose electrons) and20 neutrons


What is the formula used to calculate the number of electrons when only the atomic number is given?

The number of electrons is simply the same as the atomic number, assuming the compound or element is neutral (not positive or negative). To find the number of neutrons, take the atomic mass and subtract atomic number. The number of electrons is simply the same as the atomic number, assuming the compound or element is neutral (not positive or negative). To find the number of neutrons, take the atomic mass and subtract atomic number.