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number of neutrons = mass number - atomic number
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∙ 9y ago
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How can you find the mass from the number of atoms?
protons plus the number of neutrons.
How many neutrons are in atom of sodium?
There is no "average," though I suppose you could find one by adding up the number of neutrons and dividing by the number of elements... Atoms belong to certain elements and are classified by the amount of neutrons they have. Each element has atoms which have a different number of neutrons in them (such as Hydrogen, the atoms of which have one neutron each.) Also, the number of neutrons always equals the number of protons the atom has, so if you want to know how many neutrons a specific atom has, you can always look it up on the Periodic Table of Elements.
Is the number of protons equal to the number of neutrons in an atom?
The number of neutrons in an atom CAN be equal to the number of protons and electrons, BUT IT IS NOT ALWAYS. You can find the number of neutrons in an atom by subtracting the atomic number from the mass number. The number is often the same among the lighter elements, but the ratio of neutrons to protons quickly grows larger than one (on average) as you go further along the periodic table.
Where are the nuetrons found on the periodic table?
Neutrons are sub-atomic particles. The Periodic Table is an arrangement of the elements (atoms) made from these subatomic particles. Thus Neutrons by themselves have no place in the Periodic Table. However as all elements/atoms (except Hydrogen) contain some Neutrons, it is possible to find out how many using the information presented on the Periodic Table. The number of Neutrons present in an element/atom can be determined by subtracting the atomic number of an element/atom from its atomic mass.
How do yo find an atoms mass number?
Mass number is the number of protons and neutrons in the nucleus of atom.
Can an atom of two different elements have the same mass number?
Yes. The mass number is basic to the different elements, even more useful than the atomic number. (Unless it is an isotope. Isotopes have a different amount of neutrons than the basic element atom which makes a difference in mass number too. So, a difference in mass numbers doesn't always mean it is a different element.)
How do you find neutrons in an element?
In order to find the number of neutrons in the atoms of an element, you must specify the isotope that you are interested in. Isotopes are specified according to their mass number. For example carbon-12 is the isotope of carbon that has a mass number of 12, and carbon-14 is the isotope of carbon that has a mass number of 14. All atoms of the same element, regardless of mass number, have the same number of protons, which is the element's atomic number. To determine the number of neutrons in an isotope, you subtract the atomic number from the mass number. For example, the atomic number of carbon is 6, which means that all carbon atoms contain 6 protons in their nuclei. So, to find the number of neutrons in a carbon-12 atom, subtract 6 from 12, and you get 6 neutrons in the atoms of carbon-12. To find the number of neutrons in a carbon-14 atom, subtract 6 from 14, and you get 8 neutrons in the atoms of carbon-14.
Where do you find neutrons?
You find the neutrons with the protons, inside the nucleus.Most neutrons are in the nucleus of atoms.
Do you count neutrons to find an atoms identity?
If by its identity you mean its atomic number, no. Neutrons only count towards the Atomic Mass Number, or AMU.
What does the mass number?
By knowing mass number of the elements we can easily find out the number of neutrons presen in the nuclei.Physical properties of elements somewhat depends on mass number.
What is the term for atoms of the same element that differ in their mass numbers?
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
What are the differences and similarities between molecule and element?
An atom refers to one specific atom usually, unlike an element which is a grouping of atoms who all share the same number of protons. Elements are the quasi-classifications for atoms to make referring to them and dealing with them easier. However, atoms of one element, meaning they have the same number of protons, do not always have equal amounts of neutrons. They can form isotopes, which have more or less depending on the isotope, but if you were to distinguish a single atom, you would find that its number of neutrons does not necessarily correspond to the rest of those of that element. In other words, atoms are the particles, elements are the type of particle.
