A silicon isotope called silicon 35, with 35 neutrons instead of the regular 14.
The number of protons
protons and neutrons. This is because the atomic mass of an element is calculated by adding the number of protons and neutrons in the nucleus of an atom. The number of protons determines the element's identity, while the number of neutrons affects its stability.
Atoms of all elements can have neutrons in them. Only the element hydrogen has an isotope whose atoms do not contain neutrons, but all other isotopes of hydrogen have neutrons in them. In the heavier elements the number of neutrons always exceeds the number of protons in the atom.
The mass number of an element is equal to the sum of the elements neutrons and protons.
An atomic nucleus contain protons and neutrons; protons and neutrons contain quarks and gluons.
No, the number of protons determines the element. Each element has a unique number of protons in its nucleus, which is what defines its identity. If two elements had the same number of protons, they would be the same element.
The sum of protons and neutrons is the atomic mass.
well of protons, STOP CHEATING IN WIKIANSWERS AND DO YOUR WORK
The atomic number 33 is for arsenic (As); the nucleus contain 33 protons and 42 neutrons.
mass number
Carbon Number of Protons/Electrons: 6 Number of Neutrons: 6
In the neutral state, all atoms of the same element contain equal numbers of protons and electrons. However, most elements have atoms with different numbers of neutrons. These are called isotopes.