The mass number of an atom is the sum of its protons and neutrons. In this case, sodium has 11 protons and 12 neutrons, so the mass number is 11 + 12 = 23.
A neutral carbon atom contains 6 protons, 6 neutrons, and 6 electrons. The number of protons and electrons is equal, giving the atom a neutral charge.
An atom's nucleus contains protons and neutrons, while electrons orbit around the nucleus. The number of protons defines the element, the number of neutrons can vary within isotopes of the element, and the number of electrons equals the number of protons in a neutral atom.
The element with 74 protons is tungsten (symbol W). The number of electrons and neutrons does not affect the identity of the element, which is solely determined by the number of protons.
All beryllium atoms have 4 protons and 4 electrons. The number of neutrons is characteristic of a particular isotope, not of beryllium as a whole, and may be determined by subtracting 4, the number of protons, from the mass number of the isotope.
Argon has 18 protons, 22 neutrons, and 18 electrons.
There are similar number of neutrons and protons. It contains 29 neutrons and protons.
The nucleus of an atom contains only protons and neutrons; there are never any electrons in the nucleus. The number of neutrons is generally equal to or greater than the number of protons.
A neutral carbon atom contains 6 protons, 6 neutrons, and 6 electrons. The number of protons and electrons is equal, giving the atom a neutral charge.
A neutral atom will have the same number of electrons as protons. Therefore, if the atom contains 4 protons, it will also have 4 electrons.
Protons, electrons, and neutrons are the three main parts of atoms. In an atom, the nucleus contains the protons and neutrons, the electrons are found in shells around the nucleus. On the periodic table, the atomic number tells you the number of protons of an element.
An atom's nucleus contains protons and neutrons, while electrons orbit around the nucleus. The number of protons defines the element, the number of neutrons can vary within isotopes of the element, and the number of electrons equals the number of protons in a neutral atom.
Astatine contains electrons, protons, and neutrons as its subatomic particles. Specifically, it has 85 electrons, 85 protons, and varying number of neutrons depending on the isotope of astatine.
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
No. The number of neutrons has no affect on the number of protons and electrons.
there are 7 neutrons, 7 protons, and....----electrons
Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons
A Rutherfordium atom has 104 protons, 157 neutrons, and 104 electrons.