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The electron cloud has such a small mass because that's where all the electrons are! Electrons are fundamental particles having a mass of only 9.109 X 10-31 kg. To put that into perspective, a proton has a mass of over 1,800 times that of the electron.
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What is the best example of the purpose of scientific notation?
Any number that is very large, or very small (near zero). For example, the mass of the Sun in kilograms (large), the distance to the M31 galaxy in meters (large), or the mass of the electron in kilograms (small).
How many electron volts per kilowatt hour?
One kWh has 2.25 x 1025 eV. (The electron-volt is a very small unit, used in particle physics.)
When you cut an apple into pieces does its mass stay the same or does it get smaller?
Its mass remains the same (except for the very small amounts that stick to the knife blade).
Does the period of simple pendulum depend on the mass of the bob?
Not in the theoretical world, in the practical world: just a very little. The period is determined primarily by the length of the pendulum. If the rod is not a very small fraction of the mass of the bob then the mass center of the rod will have to be taken into account when calculating the "length" of the pendulum.
What are defects of e equals mc2?
The formula E=mc2 states that the conversion ratio of mass to energy is "Energy=mass times the speed of light squared" (which indicates that the conversion of a small amount of mass can create a very large amount of energy).
What is todays atom model?
Scientists think that atoms basically look like an electron cloud circling a small, very dense nucleus. The electron cloud is negatively charged, makes up most of the volume of the atom, and has hardly any mass, but the nucleus is positively charged, very small, and contains all of the mass of the atom.
Does an electron have a large or small mass?
An electron has a very small mass, not a large mass.
What will be the effect of the removal of an electron to the mass of atom?
As mass of elactron is very small as compare to proton and neutron So there will be no effect on mass if electron is removed
Does a atom gain mass during ionization?
When an element loses an electron(s) to form a cation there is a very very small decrease in mass When an anion is formed by gaining electron(s) there is a very small increase. A proton weighs roughly the same as a neutron and these are nearly 2000X the mass of an electron.
What particles the one with the least mass is the electron proton neutron or neutrino?
Neutrinos, but their mass is very, very small.
What are the two subatomic particles with a mass?
In the atom, protons and neutrons; the mass of the electron is very small.
Why are electrons not used to determine the mass number or atomic mass of atoms?
because
Where is a electron located?
They are located in the electron cloud of an atom. ---------- Electrons (very low mass particles with negative electrical charge) are placed around the nucleus of an atom in electron shells, with different energy levels; because the nucleus contain protons the electrical charge is positive. The electron cloud is a model of quantum mechanics.
Why an electron is ignored from the calculations of the weight of an atom?
The mass of a proton is about 1.67 * 10−27 kg or 1.007 atomic mass units. Neutrons are very close to this, at 1.675 *10-27 kg, or 1.009 atomic mass units. Electrons have a mass less than approximately 1/1836 of this so can effectively be ignored.
What measurement is the mass of a proton?
atomic units. A proton has a mass of 1 atomic unit, and so does a neutron. the mass of an electron is very small, and almost negligible
Why doesnt the mass number change when electrons are added or removed?
The mass of an electron is very small, almost negligible, compared to that of a proton or neutron.
Is the nucleus the biggest part of an atom?
Yes, it is true thatit is the heaviest, it is where most of the mass resides. However size wise it is small the electron cloud is relatively very large., from 145,000 to around 25000 times the diameter- it depends on the element.
