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What is the atomic mass and symbol of an element with 34protons 33 neutrons 34 electrons?
The 34 protons means that this is the element that has an atomic number of 34, which is selenium. The mass number for the isotope given is 67, which is the sum of the protons and neutrons. Mass number is not the same as Atomic Mass. Atomic mass is the total mass of the protons, neutrons, and electrons in an atom.
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What is the atomic mass of an element with 4 protons 5 neutrons and 4 electrons?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus. In this case, the element has 4 protons and 5 neutrons, so its atomic mass is 4 + 5 = 9 atomic mass units (amu). The number of electrons does not affect the atomic mass.
When does the atomic mass of an element represent?
The average total mass of its neutrons,protons and electrons
What is the number neutrons for samarium?
Because the atomic number is 62, the element Samarium has 62 electrons and 62 protons. Since the number of neutrons is calculated by subtracting the atomic number from the atomic mass, and Samarium's atomic mass is 150, it has 88 neutrons.
How do you figure the atomic mass of element when you have electrons?
The term atomic mass is used only for isotopes; for chemical elements the term atomic weight is recommended.But atomic masses and atomic weights include also all electrons.
The atomic mass of an element whose atoms consist of eight protons nine neutrons and eight electrons is what?
The atomic mass of the element with eight protons and nine neutrons is 17 atomic mass units. This is calculated by adding the number of protons and neutrons together, as electrons contribute negligible mass to the overall atomic mass.
How many neutrons and electrons are in the nucleus of an atom?
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons)
What are the number of protons neutrons and electrons in an element?
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
How many nuetrons are in the element oxygen?
There are 8 neutrons in oxygen element because the no. of electrons are equal to the number of protons and oxygen element contain 8 electrons.
How do you find out if something is an element?
if it has protons, neutrons and electrons. It also has to have an atomic number and atomic mass.
What element has 26 electrons and 31 neutrons?
The element with 26 electrons and 31 neutrons is iron (Fe), which has an atomic number of 26, corresponding to the number of electrons, and an atomic mass of approximately 57, which includes both protons and neutrons.
What information can you gather knowing the atomic number and mass of an element?
If you know the atomic no. and atomic mass, then the no. of electrons, no. of protons and no. of neutrons can also be determined. Atomic No.=No. of electrons = No. of protons. No. of neutrons=Atomic mass-Atomic no. Also, by no. of electrons you can determine its valency and the no. of valence electrons.
How do you get the number of protons electrons and neutrons from the atomic mass number and atomic number?
Number of protons = atomic number Number of neutrons = Atomic Mass (rounded to the nearest whole number) minus the atomic number Number of electrons in a stable element = number of protons Number of electrons in an unstable element = atomic number minus the charge
What is the atomic mass of an element with 4 protons 5 neutrons and 4 electrons?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus. In this case, the element has 4 protons and 5 neutrons, so its atomic mass is 4 + 5 = 9 atomic mass units (amu). The number of electrons does not affect the atomic mass.
Which element has 30 neutrons and 15 electrons?
There are a variety of isotopes that have 30 neutrons. It isn't the number of neutrons that determines an element, but the number of protons. Electrons generally balance the number of protons.
How many protons and neutrons does an atom have?
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons) R
How many protons neutrons and electrons does si-28 have?
A silicon-28 atom has 14 protons, 14 neutrons, and 14 electrons. The number of protons determines the element (silicon in this case), the sum of protons and neutrons gives the atomic mass of the isotope (28 in this case), and the number of electrons balances the charge to make the atom electrically neutral.
When does the atomic mass of an element represent?
The average total mass of its neutrons,protons and electrons
