A proton is positive and an electron is negative
Protons are approximately 1,835 times the mass of the electron.
Protons are in the nucleus.
Electrons are in the 'shells'.
Mercury (Hg) can ONLY have 80 protons, or else it cannot be mercury. The difference between its mass number (201) and 80 is 121, which is the number of neutrons. These can vary and are called isotopes. The number of protons can always only be 80 for mercury, tho.
F-. To figure this out, the element is determined by the number of protons (9=F), and the charge by the difference between the protons and electrons. There's one more electron than proton here so the charge is 1-.
Oxygen is a gas, sulphur is a solid. Oxygen has 8 protons and 8 electrons, sulphur has 16 of each.
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.
bromine is bigger. bromine has an extra shell of electrons. bromine reacts less vigorously. bromine has a larger amount of protons, neutrons and electrons.
Electrons have a negative charge and protons have a positive charge.
Neon has 10 protons and 10 electrons. Calcium has 20 protons and 20 electrons.
Mass, charge and place in the atom are different.
find the difference between the number of electrons and protons, and then find whether protons(+) or electrons(-) are more abundant. if the difference was 2, for example, and there were (2) more protons than electrons, the charge would be written as: chemical symbol 2+
The difference between the positive charges (protons) and the negative charges (electrons).
Protons and electrons are both found in an atom. The atomic number on an element tells you the amount of electrons and protons, ex. Hydrogen: Atomic number = 1 Protons: 1 and Electrons: 1. Protons are positively charged molecules while electrons are negatively charged.
Valence electrons are electrons on the outermost shell/orbitals. Sheilding electrons are inner electrons that block valence electrons from protons causing less attraction.
The difference is how many protons and electrons. Protons are positive, (both "p's" easier to remember) so if there are more electrons it's negative, less electrons it's positive. When atoms have electrons added or subtracted it changes the charge, then they are known as ions. The atomic number is how many protons there are, this never changes, if it does there is a different element.
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hydrogen has fewer protons and electrons than any other element.
Protons and neutrons have approximately the same mass, but the proton is electrically charged and the neutron isn't. Electrons have a much much lower mass and an opposite electrical charge to that of the proton. That's about as simple as I can get it. It's by no means the only difference between them.