The mass of an atom comes from the mass of its protons and neutrons. These are the two largest of the three subatomic particles in an atom and both are found in the nucleus. The smallest subatomic particles, the electrons, orbit the nucleus but have so little mass that they do n...
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; ...
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...
Speaking of data, here are some. Duty factor (DF; fraction of stride cycle that a given foot is in contact with the ground; i.e., 1 means the feet never ever leave the ground; 0 means that the animal never touches the ground and thus is truly flying) on the x-axis, and stride ...
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...
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 unit is called a newton (N), and is defined as the force required to accelerate a mass of 1 kg at a rate of 1 meter/sec. Mathematically expressed;1 N = (1 kg)(1 m/s²) or 1 N = 1 kg.m/s²Even if the math is a bit beyond you, you can note that the SI...
The total number of protons and neutrons added together is called the relative atomic mass. Hydrogen has a relative atomic mass of 1, while helium's relative atomic mass is 4 (because there are two protons and two neutrons inside). In other words, an atom of helium is four times heavier...
What is the mass number of argon? Isotopes: Elements often have different variations of their atoms found in nature. While the number of protons must stay the same to qualify as a particular element, there is no restriction on the number of neutrons that can be found in a nucleus. The di...