For a given atomic number. Then that neutrally charged element has the same number of protons and electrons.
e.g. Carbon ; Atomic Number 6, has 6 protons and 6 electrons.
For a given Atomic Mass , the the number of neutrons can be found, by subtracting the mass from the atomic no.
e.g. Carbon ; Atomic Mass 12, has 12 - 6 = 6 neutrons.
Most elements can exhibit different atomic masses , known as ISOTOPES. , This is when the given element has a different number of neutrons.
e.g. Carbon ; atomic mass 13 , has 13 - 6 = 7 neutrons , described as Carbon -13 or C-13
Similarly Carbon again ; atomic mass 14, has 14 - 6 = 8 neutrons, described as Carbon-14 or C-14.
A further example is hydrogen. It exhibits three isotopes.
protium ; 1 proton, 0 neutrons and 1 electron Mass = 1 (H-1 or H)
deuterium ; 1 proton, 1 neutron and 1 electron Mass = 2 (H-2 or D)
tritium ; 1 proton 2 neutrons and 1 electrons. Mass = 3 (H-3 or T)
Notice in all three isotopes the number of protons remains the same, so it is still the same element.
Carbon
the number of protons and electrons is equal. if there are 3 protons there are 3 electrons and the atomic mass is protons plus neutrons so to find them
atomic mass - atomic number= number of neutrons
atomic number = number of protons = number of electrons
mass number = number of protons + number of neutrons
The atomic number must be known along with the mass number. Then the number of protons or electrons is the same as the atomic number, and the number of neutrons is the difference between the mass number and the atomic number.
Nitrogen-14: 7 Protons, 7 Electrons, 7 Neutrons To work this out in the future for other elements: Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number Hope this helps!
Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.
Silicon 28 (28Si) has 14 protons, neutrons and electrons.
The charge of an ion can be calculated by adding up the protons and subtracting the electrons. When oxygen with 8 protons has 8 electrons it is neutral, when it has 7 electrons it is positively charged.
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.
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
Neutrons and protons.
Fluorine has an atomic number of 9. Therefore it has 9 protons and electrons. It has an atomic mass of 19 amu. Therefore, the number of neutrons present can be calculated by subtracting the number of protons from its mass, i.e., 19-9=10. thus, fluorine has 9 protons and 10 electrons.
Phosphorus has an atomic no. of 15 and its atomic mass is 31.=we know,atomic no.=number of protons==also, atomic mass=no.of protons+no. of neutrons==this implies, 31=15+no. of neutrons= 31-15=no. of neutrons= 16=no. of neutrons==also,no. of protons=no, of electrons=so, total no. of protons=15total no. of electrons=15total no. of neutrons=16
# of protons = # of electrons # of protons/ electrons + # of neutrons = atomic mass
The atomic number is the number of protons. For example, the atomic number of Hydrogen is 1, because it has 1 proton. The mass is calculated using protons, neutrons, and electrons.
The atomic number must be known along with the mass number. Then the number of protons or electrons is the same as the atomic number, and the number of neutrons is the difference between the mass number and the atomic number.
Protons - 35 Neutrons - 43 Atomic Number - 35 Electrons - 35
For a stable atom, no. of protons= no. of electrons no of neutrons= Atomic Mass- no. of protons
Protons, neutrons and electrons are located in the atom. The protons and neutrons are located in the atomic nucleus; the electrons are around the nucleus, arranged in shells.
Nitrogen-14: 7 Protons, 7 Electrons, 7 Neutrons To work this out in the future for other elements: Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number Hope this helps!