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First of all, an atom can not literally have either more than one mass number or more than one atomic number. Different atoms of the same element can have different mass numbers but the same atomic number because the atomic number is the defining characteristic of an element, but many elements have isotopes that have different numbers of neutrons in their nuclei and therefore different mass numbers: Mass numbers are the sum of the numbers of protons and neutrons in the nucleus.
What else can I help you with?
What is the number of atomic mass in a atom?
The atomic mass of an atom is the total mass of its protons, neutrons, and electrons. It is usually measured in atomic mass units (u) or grams per mole (g/mol). The atomic mass can be found on the periodic table as the average atomic mass of an element.
How is the atomic mass determined?
Atomic Mass is the number of protons in an atom plus the number of neutrons in the same atom.
Atomic mass is 201 what is the atomic number?
The atomic number is the number of protons in an atom's nucleus. Given an atomic mass of 201, this information alone does not provide the atomic number as different elements can have the same atomic mass due to isotopes. More specific information about the element is needed to determine the atomic number.
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.
Do carbon and oxygen have the same atomic mass?
No, carbon and oxygen do not have the same atomic mass. Carbon has an atomic mass of approximately 12 atomic mass units, while oxygen has an atomic mass of approximately 16 atomic mass units.
What is the number of atomic mass in a atom?
The atomic mass of an atom is the total mass of its protons, neutrons, and electrons. It is usually measured in atomic mass units (u) or grams per mole (g/mol). The atomic mass can be found on the periodic table as the average atomic mass of an element.
How is the atomic mass determined?
Atomic Mass is the number of protons in an atom plus the number of neutrons in the same atom.
What one has more mass an atom of gold or lead?
An atom of lead has more mass than an atom of gold. This is because lead has a greater atomic mass than gold, due to the larger number of protons, neutrons, and electrons in a lead atom compared to a gold atom.
What is the mass of the number minus atomic number?
The mass number minus the atomic number is the number of neutrons in an atom. The atomic number is both protons and electrons. Boron, atomic number 5, has two naturally occuring isotopes with mass numbers of 10 and 11, 10B, 11B. The number of neutrons in each is 5 and 6 respectively. The percentage occurence is roughly 20%, 80% respectively. This gives rise to the fractional atomic mass.
Atomic mass is 201 what is the atomic number?
The atomic number is the number of protons in an atom's nucleus. Given an atomic mass of 201, this information alone does not provide the atomic number as different elements can have the same atomic mass due to isotopes. More specific information about the element is needed to determine the atomic number.
How can you calculate the number of proton in an atom?
number of neutrons = Atomic Mass - atomic numberRead more: How_do_you_calculate_the_number_of_protons_neutrons_and_electrons_in_a_neutral_atom
Difference between atomic weight and mass number?
Atomic mass (ma) is the mass of an atom. A single atom has a set number of protons and neutrons, so the mass is unequivocal (won't change) and is the sum of the number of protons and neutrons in the atom. ... Atomic weight is a weighted average of the mass of all the atoms of an element, based on the abundance of isotopes.
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.
Do carbon and oxygen have the same atomic mass?
No, carbon and oxygen do not have the same atomic mass. Carbon has an atomic mass of approximately 12 atomic mass units, while oxygen has an atomic mass of approximately 16 atomic mass units.
What is the notation of an atom of sodium with the atomic number 11 and a mass number of 24?
2411Na, which is sometimes written more simply as 24Na, since all Na atoms have 11 protons.
Why does an atom of sodium have more mass than an atom of neon?
Sodium is atomic number 11, while neon is atomic number 10. We would already expect sodium to be heavier, but the most common stable isotope of sodium has 12 neutrons, and the most common stable isotope of neon has only 10. Since the atomic weight can be approximated by the sum of neutrons and protons (and the number of protons is the atomic number), we can guess that sodium's atomic mass is 23 and neon's is 20.
Why does the molar mass increase by more than one unit when the atomic number increase by one unit?
Because atomic mass is the sum of both atomic number and number of neutrons in an atom.
