The smallest subatomic particles, the electrons, orbit the nucleus but have so little mass that they do not really contribute to the mass of the atom.Answer and Explanation: The approximate mass of a neutron in atomic mass units is one amu. This is because atomic mass units are bas...
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...
3.The relative molecular mass of a metal sulphate, XSO4 is 136.What is the relative atomic mass of metal X? C[Relative atomic mass: O, 16; S, 32]Jisim molekul relatif bagi satu logam sulfat, XSO4 ialah 136.Berapakah jisim atom relatif bagi logam X?[Jisim atom relatif: O, 16; ...
搞清它们关系了应该就能选出来了.
Magnesium oxide (chemical formula: MgO) is a compound composed of magnesium and oxygen elements. Relative molecular mass is the ratio of the mass of a substance molecule to the mass of carbon-12 isotope. It can be used to describe the size of the Magnesium oxide molecule's mass. What ...
What is the relative atomic mass of sodium? Sodium: On the periodic table of elements, the chemical element sodium is shown by the symbol Na. Sodium has an atomic number of 11, which means it has 11 protons. Key Terms Element: An element is a chemical substance that cannot be broken do...
Introduction Nonalcoholic fatty liver disease (NAFLD) is the liver manifestation of adiposopathy. Recently, a new score was developed to estimate body fat percentage (relative fat mass, RFM). We aimed to evaluate the value of RFM in predicting the presence and severity of NAFLD, compared with ...
The force of gravity acting on an object is also that object's weight. When you step on a scale, the scale reads how much gravity is acting on your body. The formula to determine weight is [source: Kurtus]: weight = m x g where m is an object's mass, and g is the acceleration...
Sophie Barrett, of California-based wine distributors Selection Massale, speaks specifically of her experience withSavoiewine producer, Jean-Yves Peron: "Jean-Yves Peron is a total badass, I was blown away by the complexity that skin contact brings to those Alpine varieties he makes. Jean-Yves...
A particle with very low mass, around that of an electron, and no electrical charge, the neutrino is an elusive subatomic particle. The neutrino is so shy that the duration between the theorization of its existence and its actual discovery was 25 years. Wolfgang Pauli, a famous quantum physic...