Refer to the Periodic Table of elements
the number above the letter (atomic #) refers to the number of protons in the nucleus
NOTE: in a neutral atom, we know that #protons = #electrons
the number below the letter(Atomic Mass) refers to the number of protons + neutrons
therefore if we take
ATOMIC MASS - ATOMIC # = # NEUTRONS
Depends on the number of protons that atom has. In a stable atomic structure that is not radioactive this usually a 1:1 proton to neutron ratio.
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Except for iron, with 26 protons and 30, 31, or 32 neutrons, all stable.
And except for chlorine, with 17 protons and 18 or 20 neutrons, both stable.
And zinc, with 30 protons and 35 neutrons.
And tin, 50 protons, 68 neutrons.
And lead ... 82 protons and 125 neutrons.
And xenon ... 54 and 77.
And Mercury ... 80 and 120.
And silver ... 79 and 118.
And the stable form of uranium ... 92 protons and 146 neutrons.
In fact, once you get past the first 20 elements or so, all the rest have more
neutrons than protons in their nucleus, and the higher you keep going, the
bigger the difference is.
Well.... a neutron is not known to be seen. Scientists know where a neutron is at by the research they did on it and their 5 senses. The neutron is possibly the smallest part of an atom out of a proton, an electron, and an neutron. They cant even see a neutron with one of those expensive microscopes made for atoms and things..... :) Hope this helps!!
5 senses- smell, taste, hear, see, and feel
One way to get the number of neutrons in an atom is by calculation :
Example :
If you have the mass of the atom and the atomic number(number of protons) :
Mass (A) - Atomic number(Z) = Number of neutrons (N)
Oxygen atom : A-Z=N
16-8=8
Thus the single oxygen atom contains 8 neutrons.
To calculate the amount of neutrons in an atom, subtract the Atomic # (# of Protons) from the Atomic Mass. Because electrons are virtually weightless, the remaining number will leave you with the amount of neutrons.
Ex.
Carbon
Atomic #: 6
Atomic Mass: 12
12 - 6 = 6
Therefore, there are 6 neutrons.
Unfortunately, isotopes tend to mess things up.
This is just the general rule for finding the neutrons in the normal periodic form of the element.
Round the atomic mass and divide it bythe atomic number
This is true I asked my teacher!!!!
Do not trust any one elses!!!!
You find out the neutrons by subtracting the ATOMIC MASS from the ATOMIC NUMBER.
Ex: Atomic mass: 20
Atomic Number: 5
20 (atomic number) - 5 (atomic mass) = 15 neutrons
You find out the neutrons by subtracting the ATOMIC MASS from the ATOMIC NUMBER.
Ex: Atomic mass: 20
Atomic Number: 5
20 (atomic number) - 5 (atomic mass) = 15 neutrons
To find the number of neutrons in a nucleus, we need to subtract the mass number from the atomic number.
Neutrons number = Mass number - Protons number
Mass number is the number of protons and neutrons in the nucleus of atom.
The neutrons of an atom are located in the nucleus (except hydrogen-1 isotope which has no neutrons).
The neutrons of an atom are located in the nucleus (except hydrogen-1 isotope which has no neutrons).
Neutrons are located in the nucleus of an atom, and electrons are in the electron field outside the nucleus.
The isotope of an atom is dependant on the number of neutrons in the atom's nucleus eg normal carbon has 6 neutrons and 6 protons but the isotope of carbon has 8 neutrons and 6 protons
Mass number is the number of protons and neutrons in the nucleus of atom.
you can find the neutron in the center of an atom.
in nucleus of atom
Neutrons = Mass number - Number of Protons
You can find a proton in the nucleus of the atom along with neutrons.
The neutrons of an atom are located in the nucleus (except hydrogen-1 isotope which has no neutrons).
The neutrons of an atom are located in the nucleus (except hydrogen-1 isotope which has no neutrons).
Neutrons are found in the atom's nucleus.
Neutrons are located in the nucleus of an atom, and electrons are in the electron field outside the nucleus.
To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.
The isotope of an atom is dependant on the number of neutrons in the atom's nucleus eg normal carbon has 6 neutrons and 6 protons but the isotope of carbon has 8 neutrons and 6 protons
protrons, neutrons, electrons