# What is equal to the mass of a proton?

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The neutron has about the same mass as the proton, each has a mass a tiny amount greater than 1 AMU (atomic mass unit). The neutron is the smallest bit more massive.

The electron has a mass of just a bit over 5/10,000ths of an AMU. Extremely less massive in comparison, isn't it!
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# How does the mass of an electron compare to that of a proton?

The mass of a proton is 2000 times the mass of an electron. Mass of electron: 9.10938 * 10 -31 kg Mass of proton: 1.67262 * 10 -27 kg Mass of neutron: 1.67493 * 10 -27 kg Note that protons and neutrons weigh approximately the same (neutrons are slightly heavier), but electrons are MUCH (MORE)

# Is the number of protons equal to the atomic mass minus the atomic number?

No, the number of protons is the atomic number, what you have suggested is the number of neutrons

# Is the mass number equal to the number of protons and electrons?

it is the sum of the number of neutrons and protons. Mass number is the sum of number of neutrons and protons while atomic number is equal to number of protons or electrons..

# Is the mass number of an atom equal to the number of protons it contains?

No. The mass number (also, nucleonic or atomic number) of an atom is equal to the total number of nucleons (the collective term for protons and neutrons) in its nucleus. Isotopes are chemically near-identical atoms of an element that have the same number of protons and electrons, but a dif (MORE)

# What is the ratio of the mass of a proton to the mass of a neutron?

Mass of a Proton = 1.6726x10 -27 kg Mass of a Neutron = 1.6749x10 -27 kg . The ratio is then:. 0.99864

# Is the mass of an electron about equal to the mass of a proton?

No, it isn't. The mass of an electron is significantly smaller thanthat of a proton. The mass of 1,800 electrons is about the same as the mass of onesingle proton. The antiparticle of the electron, the positron, has the same massas the electron. the mass of the electron is not the same to the mass (MORE)

# Are the number of protons in an atom of an element equal to its atomic mass?

No. The number of protons in an atom is equal to its atomic number . Atomic mass is the sum of the number of protons and neutrons.

# What is the ratio of the mass proton to the mass of an ELECTRON?

Dunno, but the ratio of the mass of a proton to the mass of what prople think of as being an electron is approx 1980. I'd check that if I were you though. Probably OK to +- 5%.

# How do the masses of electrons compare with the masses of protons?

The mass of a proton is 1836 times greater than the mass of an electron.

# How many electrons equal the mass of one Proton?

1836 electrons equal the mass of 1 proton. A proton has a mass of 1.0073 amu, a neutron 1.0087 amu, and an electron 5.486 x 10 -4 . So, it would take 1836 electrons to equal the mass of 1 proton.

# What is a neutral subatomic particle in an atoms nucleus that has masses nearly equal to that of a proton?

Protons and Neutrons compose the nucleus of an atom. Protons and nutrons weight combine to give the mass of the atom. In most atoms, the amount of Neutrons is equivalent to the amount of Protons.

# How does the mass of a proton compare to the mass of a neutron?

The mass of a proton is about 1.672621777 x 10 -27 kg. The mass of a neutron is about 1.674927351 x 10 -27 kg. The equivalent energy of a proton is 938.272046 MeV/c 2 . The equivalent energy of a neutron is 939.565378 MeV/c 2 . The difference is 1.293332 MeV/c 2 , which is the amount of (MORE)

# Protons plus neutrons plus electrons equals mass number?

no just protons + neutrons. but always number of electrons= number of protons( in an atom)

# Do protons and electrons equal the atomic mass?

Protons and neutrons equal atomic mass. Although an atom has the same amount of protons as electrons, saying that electrons + neutrons = atomic mass would be incorrect as the mass of an electron is, in comparison, very small.

# True or false The number of protons is equal to the atomic mass minus the atomic number?

False. The number of protons IS EQUAL to the atomic number. The number of neutrons is equal to nucleon number - proton (atomic) number.

# Protons and electrons are equal in mass but opposite in charge?

They are opposite in charge. Protons have a positive charge and electrons have a negative charge. The mass of a proton is 1838 times that of an electron. Mass of electron: 9.10939 x 10 -31 kg Mass of proton: 1.67262 x 10 -27 kg

# A proton has a mass of?

A proton has what is known as one atomic mass unit (AMU) neutrons also weigh this much but electrons weigh much much less.

# Atomic mass is protons and neutrons?

Atomic mass is the total mass of protons, neutrons and electrons in a single atom.

# Is the mass of proton is the mass of an electron?

No, there are the same number of protons and electrons in an atom, but I don't think that they have the same mass. You're right, an electron is 1,836 times lighter than a proton.

# Compare the mass of a proton to the mass of an electron?

absolute mass ofelectron(rest mass)=9.1093897x 10 -31 kg (negligible compared to proton) absolute mass of proton(rest mass)=1.6726485x 10 -27 kg( about 1847 times the mass of electron)

# Mass-to-charge ratio for proton?

Proton Mass, m = 1.67x10 -27 kg Proton Charge, q = 1.6x10 -19 C m/q = 1.04x10 -8 kg C -1

# What is the mass of a proton to the mass of a electron?

Proton: 1,007 276 466 77(10) atomic mass units (u) Electron: 5,485 799 094 3(23).10 -4 atomic mass units (u) Mass ratio proton/electron: 1 836

# Do the designations hydrogen and neutron for the proton and neutron imply that these two praticles are of equal mass?

The neutron is a little heaviest than the proton. The mass of a proton is 1,00727646677(10) atomic mass units. The mass of a neutron is 1,008664915 6 (6) atomic mass units.

# Do neutrons and protons have identical masses?

No, neutrons are slightly heavier. (A protons have about 0.9986 times the mass of a neutron.).

# Does the mass of a neutron equal the mass of a proton?

The mass of a neutron is very close to that of a proton, but slightly higher.

# Is the mass of a proton exactly equal to 1 amu?

No, the mass of a proton is slightly lesser than 1 amu whereas a neutron is slightly heavier than 1 amu.

# Does the number of protons is equal to the atomic mass minus the atomic number?

No. For an isotope of an element, the number of neutrons, not protons, in the nucleus of an atom of the isotope is equal to the isotopic mass number minus the atomic number. The atomic number itself is the number of protons in the nucleus.

# What is the Mass of a single proton or neutron?

Mass of neutron: 1,6749 x 10 -27 kg Mass of neutron: 1,6749 x 10 -27 kg Mass of electron: 0,00091x10 -27 kg

# Who has the smallest mass protons or neutrons?

Protons have slightly less mass than Neutrons, and by slightly, it is a difference of 2x10 -24 kg, ie, 24 zeroes after the decimal point. The difference is so miniscule, that they are considered to weigh the same for most intents and purposes.

# Do electrons have the mass as protons?

Yes but an electrons mass is much much much smaller than that of a proton.

# When is an atom neutral When mass number equals number of protons equals number of electrons or when atomic number equals number of protons equals number of electrons?

An atom is neutral if the number of protons and the number of electrons it has are the same.

# Is the mass of an electrons is about equal to the mass of a proton?

No, the mass of the proton is roughly about 1836 times more than an electron. Actually, electrons do a negligible contribution to the mass of an atom.

# What is the mass or protons and neutrons?

Protons: 1.672621777(74)Ã10 â27 kg 938.272046(21) MeV/ c 2 1.007276466812(90) u Neutrons: 1.674927351(74)Ã10 â27 kg 939.565378(21) MeV/ c 2 1.00866491600(43) u Yes, taken from Wikipedia, for I have no idea how to write it. Sorry, Can't translate it into Human, simply b (MORE)

# What is the atomic mass of an element equal to atomic number or number of protons?

Answer : The atomic mass is NOT equal to both 'atomic number' and 'number of protons . The atomic mass of an element is by approximation equal to, but not exactly , the sum of protons and neutrons in the nucleus of the atom. The number of protons is given by the atomic number, not (MORE)

# What subatomic particle has mass nearly equal to that of a proton but carries no electrical charge?

The neutron is a subatomic particle that has mass nearly equal to that of a proton but carries no electrical charge.

# Where is the location of the mass of a proton?

If the mass within a proton has any structure -- in other words, if it is NOT simply a uniform sphere of about .87 fento-meters -- at present we lack the capability to discern that structure. The mass MIGHT be concentrated in the center, or at the edge, or clumped half-way in-between. We can't know (MORE)

# Is atomic mass equal the number of protons and neutrons or the weight of the nuclei?

The atomic mass number , which is always an integer, is the sum of the numbers of protons and neutrons in the nucleus. This is approximately equal to the mass of in atomic mass units of an atom of a particular isotope, because the only other constituents of an atom are electrons, of which there are (MORE)

# Is the mass of a proton 1 gram?

No. A proton has a mass of about 1.66x10 -24 gram, an incredibly tiny fraction.

# Do protons and neutrons have equally mass?

No, although their masses are very close. The difference is noticed when one considers the internal structure of the particles: a proton is comprised of two up quarks and one down quark, whereas the neutron is comprised of two down quarks and one up quark.

# Is a atomic mass of one element is equal to mass of protons neutrons and electrons?

In a way yes, it is really only the amount of protons and neutrons, but electrons are so small they carry so little weight that they add so little consequece to the atomic weight of an atom.

# Is the mass of a proton half the mass of a electron?

The mass of a Proton is certainly not half the mass of an Electron. A Proton's mass is a lot more than an Electrons. A Protons mass is around 908 MeV/c 2 , whilst an Electrons mass is 0.511 MeV/c 2 . This should answer the Question.

# What is the mass of the neutrons and protons called?

Rest mass of neutron, and rest mass of proton. If you mean the symbol, mn 0 and mp 0. If you mean the values, to 4 significant figures 1.673*10^-27kg for a proton, 1.675*10^-27kg for a neutron.

# Which more mass a- proton or electron?

A Proton is made up of Subatomic Particles, these include Quarks and Leptons. Within a Proton are two Up quarks and one Down quark. An Up quark has a mass of 2.4 MeV/c 2 , whilst a Down quark has a mass of 4.8 MeV/c 2 . An Electron is a type of Lepton, so we can not break it down any further. An Ele (MORE)

# What the mass of a proton of a mole of sodium?

Mass of one proton = 1.67 X 10 -27 kg A mole of sodium atoms = 6.022 X 10 23 atoms 11 protons per sodium atom 11 * 6.022 X 10 23 = 6.62 X 10 24 protons per mole sodium ===so, 6.62 X 10 24 * 1.67 X 10 -27 kg = 0.011 kilograms of protons in mole sodium =====( 11 grams of (MORE)

# How does mass of electron compare with that of proton?

The mass of an electron is about 1822 times less than that of a proton.

# Why do protons and electrons aproximately equal a atomic mass?

Protons are much heavier (1800 X approx) than electrons! Atomic mass is due to the mass of the protons and neutrons only a very small % of atomic mass is due to electrons.

# How many electrons does it take to equal to the mass of one proton?

electrons are a 2000th of the mass of a proton/neutron. Because of this very low mass, electrons dont affect the mass number of elements on the periodic table

# What is the mass of a proton travelling at v equals 0.8c?

First compute the Lorentz factor gamma. v/c = 0.8 v^2/c^2 = .64 1 - v^2/c^2 = 0.36 â(1 - v^2/c^2) = â.36 = 0.6 gamma = â(1 - v^2/c^2) = 1/0.6 = 1.6667 This is the factor by which the proton gains mass. So the answer is 1.667 x rest-mass Look up rest mass of proton & mu (MORE)

# The number of protons is equal to the atomic mass minus the atomic number true or false?

Answer this question The only item that exists on the planet in allthree states of matter at standard pressure is

# Is the mass of the proton about one atomic mass?

No. Different elements have different atomic masses, the allprotons have the same mass (ignoring the small mass loss to bindingenergy when bound inside an atomic nucleus). The atomic mass of an element is the weighted average of the atomicmasses of all isotopes of that element. The atomic mass of an (MORE)