The mass of an individual proton is 1.672621636(83)í–10 (-27) kg. The collective mass of the protons in the nucleus of an atom is roughly the same as the mass of all the neutrons. Of all the weight of an atom, more than 99 percent of the mass is contained in the nucleus; ther...
化学知识忘没了...搞清它们关系了应该就能选出来了.
if a proton has a relative mass of 1 unit and a relative charge of +1 unit .what is the接上relative mass and charge of :1.a neutron2.an electron? 答案 质子,中子,电子...有什么关系?化学知识忘没了.搞清它们关系了应该就能选出来了.相关推荐 1if a proton has a relative mass of 1 unit...
In reality, most of the mass of a proton is derived from interaction energy between the quarks. If you have a problem understanding this phrase them recall E =mc2. 2. By Atomic Molar Mass In a hydrogen atom, one mole weighs equals to 6.022e23, just like the way one dozen equals to ...
1.What is a proton, neutron, and electron?什么是质子,中子和电子?The proton is a subatomic particle with an electric charge of +1 elementary charge.The neutron is a subatomic particle with no net electric charge and a mass slightly larger than that of a proton.Proton and neutron are usually...
The experimental mass ratio of proton and electron is 1836. Nobody knows why it has to be this number. Sir Arthur Eddington did a lot of research on...
What are the frequency, wavelength, and momentum of a photon whose energy equals the rest mass energy of an electron?A photon has the energy 5.55 times 10^{-19}, j . what is this photon's wavelength in nanometers?a. What is the en...
and a given number of grams of one substance is not necessarily the same strength as the same number of grams of another substance, it is a very useful method of measuring chemicals relatively simply. The molar mass of a substance also equals the mass number of the substance, so chemists ...
The ionization energy of an atom is defined as the minimum energy required to remove the electron from the atom. It is equal to the energy difference between the energy in the outer level ( where,n=∞) of the atom and the energy of the electr...
Gram Molecular Mass: The gram molecular mass is the same idea as the molar mass of a substance. The periodic table lists all of the elements' molar masses. It is the average of all of the isotopes of that element. Answer and Explanation:1 ...