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If you know the atomic number and the mass number of an isotope how could you figure out the number of neutrons in its nucleus?
Wiki User
∙ 15y ago
The mass number is the total number of protons plus neutrons in the nucleus. The atomic number is the total number of protons in the nucleus. So subtract the atomic number from the mass number and that will give you the total number of neutrons in the nucleus.
Wiki User
∙ 15y ago
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What element has 4 protons 4 neutrons and 3 electrons?
Beryllium To figure this out: The atomic number of an element is the number of protons the element has in the nucleus. Using this knowledge you can figure out which element has the atomic number of four, which in this case is Beryllium.
Is N-14 or N-15 more abundant in nitrogen?
Nitrogen 14 is by far the most abundant isotope (99.63% abundant).An easy way to figure out which one is the most abundant is to look at the periodic table. The mass on the periodic table is the weighted average of all possible isotopes. The atomic mass of nitrogen is 14.00674. You can gather from this that the most abundant isotope is N-14, since the number is VERY close to 14.It is also possible to guess the most common isotope if you do not have access to a periodic table. Nitrogen has 7 protons and the most stable isotope is Nitrogen 14, which has 7 neutrons in addition to the protons. In virtually all elements, the stable isotopes are those that have the same or very similar number of neutrons as the number of protons in the nucleus. This works for Carbon which has 6 protons and 6 neutrons in the nucleus for Carbon 12, the most common isotope.This is also true for Oxygen 16 (8P and 8N), Silicon 28 (14P and 14N), and just about any element you choose.An isotope of nitrogen containing seven neutrons would be nitrogen - 15.
A chlorine atom that has 17 protons and 18 neutrons is called?
The mass number is the sum of the protons and neutrons, in this case 35. The atomic number is the same as he number of protons, in this case 17.
How can atomic number be used to find the numbers of protons electrons and nuetron's?
The atomic number is the number of protons and therefore, assuming the atom is neutral, the number of electrons. You would need to additionally know the atomic mass to figure out the number of neutrons.
How many neutrons are in the atom chlorine?
Every chlorine atom has 17 protons; 17 is the atomic number of chlorine. However, chlorine has two isotopes that are stable against radioactive decay. These have mass numbers of 35 and 37, which have 18 and 20 neutrons respectively.
If you know the atomic number and the mass number of an isotope how could you figure out the number of neutrons in its nucleus.?
The mass number is the total number of protons plus neutrons in the nucleus. The atomic number is the total number of protons in the nucleus. So subtract the atomic number from the mass number and that will give you the total number of neutrons in the nucleus.
How many neutrons is in californium?
153 neutrons in the most stable isotope Number of neutrons = Atomic mass of an isotope - atomic number. Atomic mass of the most stable isotope of Cf is 251. Atomic number of Cf is 98.
How do you figure out the number of neutrons in a isotope?
Let the N be the atomic No. and M be the mass No.The No. of Electrons=No. of Protons=NThe No. of Neutrons=M-N
How many neutrons are in the nucleus for fluorine?
if u mean in the nucleus of fluorine then you can figure this out for yourself... its really simple considering that the electrons are the decimals so really all you have to do is subtract the atomic number (9) from the atomic mass (18) on the periodic table... so here it is: 18-9=9
How many neutrons are in the nucleus of an atom with an atomic number of 25?
The number of neutrons in the nucleus of an atom varies for each isotope of the element. Atomic number 25 means the atom contains 25 Protons, and it is the element Manganese (Mn). Manganese has 4 isotopes 52Mn, 53Mn, 54Mn & 55Mn. Take the number of protons (always 25 with Mn) from the isotope number and you will have the number of Neutrons in the nucleus. eg 55Mn will have 30 Neutrons.
What percentage of an atom's mass is the nucleus?
The precise figure varies from element to element and isotope to isotope depending on the number of neutrons in the nucleus, however it is always at least 99.95% which is the ratio between an electron and a proton.
How many neutrons does nobelium have?
157; you figure that out by taking the atomic mass (259) and subtract it by the # of protons (102) and the answer is the # of neutrons. ( the atomic #, # of protons, and # of electrons are always the same # 102 ). But each isotope of nobelium has a different number of neutrons, depending on the atomic mass.
How do you figure out mass?
The Atomic Mass or weight of an isotope of an element is the total number of protons and neutrons in its nucleus. The number of protons defines which element it is, this is called the atomic number. For uranium for example it is 92, but the atomic weight can be from 233 to 238, and these different versions of uranium are called isotopes. See Periodic Table for more details of all the elements. Add the no. of neutrons and the no. of protons to get the atomic mass.
What makes up an atoms mass number?
The atomic number of an element is the number of protons in the nucleus of the atom; each element has its own distinct number. The atomic mass is the mass of the nucleus of the atom: protons and neutrons. One proton is equivalent to one unit of mass, as is a neutron. You can figure out the number of neutrons in an atom by subtracting the atomic number (number of protons) from the atomic mass; the difference is the number of neutrons.
How do you tell figure out the atomic mass?
Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.
How can you figure out how many neutrons are in an atoms nucleus by using the atomic number and the atomic mass?
The atomic mass (rounded to the nearest whole number) is the number of nucleons - i.e. protons+neutrons. The atomic number is just the number of protons. So the difference between the two (mass minus number) tells you the number of neutrons.
How many neutrons are there in isotope Rn 220?
The atomic number is 86 which gives the number of protons. 220Rn has 220 protons and neutrons so the neutron count iscalcualted as follows: 220 -86 = 134 neutrons 220Rn is an unstable isotope of Radon.
