3 CHEMISTRY-RELATIVE ATOMIC MASS the mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom, so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24 再给另一个例子 不要用英文...
If the mass of a hydrogen atom is 1.67*10^-27kg and the mass of an electron is 9.1*10^-31kg,how many electrons would be required to have a mass equivalent to one hydrogen atom? 相关知识点: 试题来源: 解析 这道题的意思是一个氢原子的质量是1.67*10^-27kg ,一个电子的质量是 9.1*10^...
One of the principal aims of this book concerning the hydrogen economy is the production and distribution of large volumes of hydrogen in advanced economies. If this comes to fruition, for a variety of reasons many economies will be unable to produce sufficient hydrogen within their borders and ...
If the mass of a hydrogen atom is 1.67*10^-27kg and the mass of an electron is 9.1*10^-31kg,how many electrons would be required to have a mass equivalent to one hydrogen atom? 下载作业帮APP学习辅导没烦恼 答案解析 结果1 举报 这道题的意思是一个氢原子的质量是1.67*10^-27kg ,一个...
A small statue that has a mass of 500.0 g displaces 150.5 ml of water. What is its density in grams per millilitres? What is the mass percent of hydrogen in water? What is the mass of NaCl in deionized water? What is the mass of a liquid with a density of 2.12 g/mL and a vol...
8. What is the universe made of? 8.宇宙是由什么构成的? 9. Are we alone in the universe? 9.我们是宇宙中唯一的生命体吗? 10. What is the origin of cosmic rays? 10.宇宙射线的起源是什么? 11. What is the origin of mass? 11.物质的起源是什么?
“SⅥtudies have shown storage allows balancing supply and demand fluctuation resulting in cost effective end use of energy. This way, mass hydrogen storage is seen as an enabler of intermittent sources like wind energy. “Our vision is for the medium term, and I expect key research and fiel...
It had occurred towards midnight of the twelfth; and the spectroscope, to which he had at once resorted, indicated a mass of flaming gas, chiefly hydrogen, moving with an enormous velocity towards this earth. View in context Others have endeavored to account for these discharges of "mountain ...
Noun1.tritium- a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms atomic number 1,H,hydrogen- a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant...
The mass of one atom ofhydrogen-1 = 1.007 AMU The mass of one atom of titin (the largest known protein) = 3 x 106AMU Each12C atom has six protons and six neutrons in its nucleus, adding up to an atomic mass of 12 AMU.Electronshave a low mass, so they are assumed to have a ne...