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A photon is a light particle or an EM wave. As a particle, it is conceptually simple to think of a photon as a point (zero) mass. One consequence of Einstein's special theory of relativity is that a particle of a finite mass can never approach the speed of light, which is made of photons. It is equally nonsensical to assign a mass to a wave, which is propagation of energy packets (one can think of waves as the travel of information). Conceptually speaking, how can information have a mass?
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What particle has the lowest mass number?
The particle with the lowest mass number is the electron, which has a mass number of 0. This is because electrons are considered to be fundamental particles and do not consist of smaller subatomic particles like protons and neutrons.
What is the mass in AMU's of an electron?
1 over 1,836 AMUAnother answerIt's negligible. It has such a low amu that it is not a factor of the overall atomic mass of an atom
What is the mass number of an electron?
An electron has a mass of 9.109 X 10-31 kg, approximately 1⁄1840 the mass of a proton. However, the term mass number doesn't apply to electrons, it applies to atomic nuclei. The mass number of a nuclear isotope is the total number of protons and neutrons, together known as nucleons, of the isotope, and is denoted by (A).
How many times greater is the mass of a proton than the mass of an electron?
1836 times the mass of an electronSo how do you calculate '1836 times the mass of a proton' ?Mass of proton = 1.673 x 10-27 or (10 to the power of negative 27)Mass of electron = 9.109 x 10-31 or (10 to the power of negative 31)Simply by dividing the largest mass (of protons) by the smallest mass (electrons):(1.67262 . 10-27) / (9.10939 . 10-31) = [1.67262 /9.10939] . [10(-27)-(-31)] =0.1836 . 10+4 = 1836
What is the third quantum number of a 2s2 electron in phosphorus 1s22s22p63s23p3?
mi=0
Why electron don't have mass?
An electron does have mass, but it's so small that it's often considered 0. If the mass of a proton or neutron is 1, then the mass of an electron is about 1/1836.
What particle has the lowest mass number?
The particle with the lowest mass number is the electron, which has a mass number of 0. This is because electrons are considered to be fundamental particles and do not consist of smaller subatomic particles like protons and neutrons.
What has a mass of 0 amu and a charge of -1?
The electron has a charge of -1; but the electron has a mass.
Do electrons have any mass?
Yes, electrons have a mass, as everything has mass. However, an electron's mass is so small that it is considered to be 0.
What is the number of atomic mass in an atom?
Relative mass number of an electron is 0
What has a negative charge and a mass of 0 amu?
An electron has a negative charge and a mass close to 0 amu (atomic mass unit).
What are Atoms 3 particles?
Proton - Relative Atomic Mass of 1, charge of 1. Neutron - Relative atomic mass of 1, charge of 0. Electron - Negligible mass (0), charge of -1.
What is the mass in AMU's of an electron?
1 over 1,836 AMUAnother answerIt's negligible. It has such a low amu that it is not a factor of the overall atomic mass of an atom
What is the mass number of an electron?
An electron has a mass of 9.109 X 10-31 kg, approximately 1⁄1840 the mass of a proton. However, the term mass number doesn't apply to electrons, it applies to atomic nuclei. The mass number of a nuclear isotope is the total number of protons and neutrons, together known as nucleons, of the isotope, and is denoted by (A).
How many times greater is the mass of a proton than the mass of an electron?
1836 times the mass of an electronSo how do you calculate '1836 times the mass of a proton' ?Mass of proton = 1.673 x 10-27 or (10 to the power of negative 27)Mass of electron = 9.109 x 10-31 or (10 to the power of negative 31)Simply by dividing the largest mass (of protons) by the smallest mass (electrons):(1.67262 . 10-27) / (9.10939 . 10-31) = [1.67262 /9.10939] . [10(-27)-(-31)] =0.1836 . 10+4 = 1836
What is the mass number of a positron?
The mass of a positron is approximately 9.1093826(16) × 10−31 kg. The positron and the electron are anti-particles of each other, and you can find out more about the positron at the Wikipedia article on that subject. A link to their post can be found below. There is also a link to a related question on the nature of the positron. That's down there, too.
What part of an atom is not used in calculating the mass number?
All parts of the atom weigh something but when doing calculations electrons are said to have a mass of 0. This is because they actually have a mass of 1/1836 amu which is insignificantly small and so it is disregarded.
