The proton contributes more even though there are equal numbers of both electrons and protons. The mass of a proton is one thousand times greater than the mass of an electron. Thus, the proton contributes more.
Protons and neutrons have almost the same mass.
Protons: 21 Neutrons: 29 Electrons: Normally 21
Atoms that are neutrally charged will have the same number of protons as electrons, because one proton will cancel out one electron. To achieve a net charge of 0, 12 protons must be countered with 12 electrons.
Atoms consist of a nucleus of protons and neutrons (the vast majority of its mass) surrounded by a cloud of electrons. In neutrally-charged ions the number of electrons equals the number of protons. The mass of an atom is the sum of the neutrons and protons, whereas the atomic number is dictated by the number of protons alone. An atom with a single proton is hydrogen, and all hydrogen atoms possess a single proton in their nucleus. Helium must have two protons, lithium three, and so on. Atoms (essentially indivisible elements) combine to form molecules via sharing electrons. The main three ideas in the nuclear theory of the atom : 1. An atom is electrically neutral, so the number of negative particles (electrons) is equal to the number of positive particles (protons). 2. An atom is almost entirely empty space, but may be occupied by extremely small, negatively-charged particles called electrons. 3. The positive charge of an atom is located in the center of the atom (the nucleus) which also contains nearly all of the mass of the atom.
Atomic mass number of the atom. The best way to remember it is: the majority of the mass of an atom is made up of the protons and neutrons (the electrons are very light!), therefore the atomic mass number is the sum of the protons and neutrons.
electrons are the same as protons
it represents where the atoms, protons, Atomic Mass, atomic number, and electrons where they are located on the nucleus.
the atomic mass, which is the mass of its protons and neutrons and electrons together
The mass of electrons is negligible compared to the mass of protons and neutrons in an atom. Therefore, the collective mass of 16 microcoulombs and 100000000000000 electrons would be determined mainly by the mass of the protons and neutrons in the atoms involved in the charge.
It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
when compared to the mass of protons and neutrons, the mass of the electrons is negligible and hence not included in atomic mass.
If you're asking about atomic mass then the answer would be 13. Protons + Neutrons = Atomic Mass
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
Atoms correspond in that they are all made up of protons, neutrons, and electrons. However, they differ in their mass numbers, which is the sum of protons and neutrons. Atoms of different elements have different mass numbers due to varying numbers of protons and neutrons.
Protons and neutrons have almost the same mass.
its not D
Because atoms are made up solely Protons, Neutrons, and Electrons. Electrons have essentially no mass, so the other two are the only particles that fractor in.