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.
For the isotope carbon-12: 6 protons, 6 neutrons, 6 electrons
In calcium chloride, there are 20 protons (from calcium), 20 electrons (neutral atom), and varying number of neutrons depending on the isotope of calcium used. Chloride ions have 18 electrons each, giving the compound a charge of -1.
This atom is sodium with an atomic number of 11 (number of protons) and an atomic mass of 23 (sum of protons and neutrons). It has one more electron than protons, giving it a net charge of +1.
The element argon has 22 neutrons. It has 18 protons and 18 electrons, giving it an atomic number of 18. The number of neutrons is calculated by subtracting the atomic number from the atomic mass, which is 40 for argon (obtained by rounding the atomic weight to the nearest whole number).
NO, protons and neutrons are in the centre of an atom and the electrons are spinning round on the outside of an atom. protons have a positive charge and electrons have a negative charge, this why they cannot be together. However, neutrons have no charge, that is why they are combined with the protons.
Carbon has 6 protons and 6 neutrons in its nucleus. It is also surrounded by 6 electrons, giving it a neutral charge.
For the isotope carbon-12: 6 protons, 6 neutrons, 6 electrons
For a standard atom, the number of protons, electrons, and neutrons is the same. For example: 2 Protons - 2 Neutrons - 2 Electrons Helium 3 Protons - 3 Neutrons - 3 Electrons Lithium 4 Protons - 4 Neutrons - 4 Electrons Beryllium So... 53 Protons - 53 Neutrons - 53 Electrons Iodine
Bromine-80 has 35 protons, as all bromine atoms do. The number of neutrons can be calculated by subtracting the atomic number (35) from the atomic mass (80), giving 45 neutrons. In a neutral bromine-80 atom, there are also 35 electrons.
In calcium chloride, there are 20 protons (from calcium), 20 electrons (neutral atom), and varying number of neutrons depending on the isotope of calcium used. Chloride ions have 18 electrons each, giving the compound a charge of -1.
In it's most stable form, 55 is its atomic mass. 55 overall - 25 protons = 30 neutrons
This atom is sodium with an atomic number of 11 (number of protons) and an atomic mass of 23 (sum of protons and neutrons). It has one more electron than protons, giving it a net charge of +1.
The element argon has 22 neutrons. It has 18 protons and 18 electrons, giving it an atomic number of 18. The number of neutrons is calculated by subtracting the atomic number from the atomic mass, which is 40 for argon (obtained by rounding the atomic weight to the nearest whole number).
NO, protons and neutrons are in the centre of an atom and the electrons are spinning round on the outside of an atom. protons have a positive charge and electrons have a negative charge, this why they cannot be together. However, neutrons have no charge, that is why they are combined with the protons.
Neutrons are the other subatomic particles that make up the magnesium atom. Magnesium has 12 protons, 12 electrons, and typically 12 neutrons in its nucleus, giving it an atomic number of 12.
chlorine
In a carbon-14 (C-14) atom, the number of protons is equal to the atomic number of carbon, which is 6. Since the atomic number represents the number of protons, a C-14 atom has 6 protons. Neutrons can be calculated by subtracting the number of protons (6) from the atomic mass (14), giving 8 neutrons. In a neutral atom, the number of electrons is equal to the number of protons, so a C-14 atom would have 6 electrons.