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What can the atomic mass tell you?
The atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the atomic mass of carbon-12.The atomic mass is a term applied only to specific isotopes; the unit is the same as above. Is a value denoting the total mass of all the protons, neutrons, and electrons in an isotope.The mass number tells us the number (the sum) of protons and neutrons in the nucleus of an atom.The atomic number, on the other hand, tells us how many protons are in the nucleus of an atom.IUPAC publish periodically tables of atomic weights - the last edition is from 2009-2010.For the atomic masses of isotopes the last published edition is The AME 2003 atomic mass evaluation, edited by Audi, Wapstra and Thibault.
Atomic mass is equivalent to the number of?
The atomic mass is the mass of an atom of that element in AMUs. (Atomic Mass Units)The atomic number, however, is equivalent to the number of protons in an atom of that element.The mass number of an atom is the total number of protons and neutrons in the nucleus of an atom. This is therefore always a whole number. The relative atomic mass of an element is the weighted average of the masses of the isotopes relative to 1/12 of the mass of a carbon-12 atom.It is a weighted average as it takes into account the relative abundances of the different isotopes (atoms of the same element but with different numbers of neutrons) of an element. This number is found in the periodic table.For example chlorine has two isotopes, 35Cl and 37Cl, in the approximate ratio of 3 atoms of 35Cl to 1 atom of 37Cl.The number of protons and neutrons in a 35Cl atom must add up to 35, the mass number. The relative atomic mass of chlorine takes into account both isotopes and is therefore 35.5.
What happens to the area of a pentagon if the sides are doubled?
The ratio of areas is the square of the ratio of lengths. Ratio lengths = 1 : 2 → ratio areas = 1² : 2² = 1 : 4 → if the lengths are doubled, the areas of quadrupled (multiplied by 4).
What happens to a cells surface area to volume ratio as it gets smaller?
It increases.
The atomic mass tells the number of?
The atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the atomic mass of carbon-12.The atomic mass is a term applied only to specific isotopes; the unit is the same as above. Is a value denoting the total mass of all the protons, neutrons, and electrons in an isotope.The mass number tells us the number (the sum) of protons and neutrons in the nucleus of an atom.The atomic number, on the other hand, tells us how many protons are in the nucleus of an atom.IUPAC publish periodically tables of atomic weights - the last edition is from 2009-2010.For the atomic masses of isotopes the last published edition is The AME 2003 atomic mass evaluation, edited by Audi, Wapstra and Thibault.
When atoms have the best balance of protons and neutrons the what is more stable?
When atoms have a balanced number of protons and neutrons, they are more likely to be stable. The nucleus of the atom is more stable when it has a balanced ratio of protons to neutrons, as this allows for a stronger nuclear force and reduces the likelihood of decay or instability.
What ratio can be used to predict the stability of an atom?
This is the protons/neutrons ratio in the atomic nucleus.
Why some natural occurring element are stable and other are not?
This depends on the ratio protons/neutrons in the atomic nucleus.
What nuclei would be the most stable?
10 protons, 12 neutrons
How do you find the ratio of neutrons to protons?
The ratio of neutrons to protons in an atom can be calculated by subtracting the atomic number (number of protons) from the atomic mass (sum of protons and neutrons) of the atom. Mathematically, ratio of neutrons to protons = (Atomic mass - Atomic number).
How is the stability of an isotope related to its ratio of neutrons to protons?
The stability of an isotope is related to its ratio of neutrons to protons because this ratio affects the balance of forces within the nucleus. Isotopes with too many or too few neutrons compared to protons may be unstable and undergo radioactive decay to achieve a more balanced ratio, leading to a more stable configuration.
What is the neutron to proton ratio in a stable form of carbon 12?
It is a 1:1 ratio because in a Carbon-12 atom there are 6 neutrons and 6 protons.
What is the ratio of neutrons to protons in a nucleus of radon 222?
The ratio of neutrons to protons in a nucleus of radon-222 can be calculated by subtracting the atomic number from the mass number. For radon-222, the atomic number is 86 and the mass number is 222. Therefore, the ratio of neutrons to protons in radon-222 is 222 - 86 = 136 neutrons to 86 protons.
What are the primary factor determining whether or not an atom is stable or unstable?
The primary factors determining whether an atom is stable or unstable are the balance between the number of protons and neutrons in the nucleus (the neutron-to-proton ratio) and the nuclear forces holding the nucleus together. If an atom has too many or too few neutrons compared to protons, it can become unstable. Additionally, atoms with very large or very small atomic numbers tend to be less stable.
What makes nucleus stable?
The strong nuclear force must balance electrostatic forces in the nucleus
How can you predict whether an isotope nucleus is likely to be stable?
You can predict whether an isotope nucleus is likely to be stable by considering the ratio of protons to neutrons in the nucleus. Nuclei with a more balanced ratio of protons to neutrons tend to be more stable. Additionally, nuclei with magic numbers of protons or neutrons are also more likely to be stable.
What is the the stability of an isotope based on Its 1. number of neutrons only 2. number of protons only 3. ratio of neutrons to protons 4. ratio of electrons to protons?
The stability of an isotope is determined by the number of neutrons it has, with more neutrons generally making the isotope less stable. The number of protons in an isotope affects its stability through the balance of electromagnetic forces within the nucleus. The ratio of neutrons to protons can impact stability, with an optimal range for stability typically around 1:1 for light elements and 1.5:1 for heavier elements. The ratio of electrons to protons does not directly influence the stability of an isotope, as electrons are located outside the nucleus and do not directly affect nuclear stability.
