to the density of matter at the time of formation: deuterium readily combines with an additional neutron to form tritium, which rapidly decays into an isotope of helium. Thus if the Universe was very dense in its first few minutes, most of the deuterium would have been converted to helium....
Hydrogen has no neutrons at all; deuterium has one, while tritium has two neutrons, according to Lawrence Berkeley National Laboratory. Deuterium and tritium are used as fuel in nuclear fusion reactors, according to Los Alamos. Hydrogen combines with other elements, forming a number of compounds,...
a colorless, odorless, flammable gas, the lightest of the elements, that combines chemically with oxygen to form water. Symbol: H; at. wt.: 1.00797; at. no.: 1; density: 0.0899 g/l at 0°C and 760 mm pressure. [< French hydrogène (1787); see hydro-1, -gen] Random House Kerne...
Hydrogen definition: a colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; atomic weight: 1.00797; atomic number: 1; density. See examples of HYDROGEN used in a sentence.
to atomic hydrogen on metal surfaces, there is a constant source of atomic hydrogen on the high-pressure side of containment vessels; in addition there is a constant sink for hydrogen on the low-pressure side as the atomic hydrogen recombines liberating molecular hydrogen. For these reasons, ...
4.Hydrogencombines chemically with oxygen to form water. 氧化合成为水。 5.The balloon was distended because of filling ofhydrogen. 球因充满了 而膨胀。 6.Water is made up of atoms ofhydrogenand oxygen. 水由 氧 原子构成。 7.Water can be reduced to oxygen andhydrogenby electrolysis. ...
At the high reaction temperatures which arise in such places, the oxygen and nitrogen in the air can combine to form nitrogen oxide. Solar energy stored in hydrogen is available at any time and at any place on Earth, regardless of when or where the solar irradiance (or the hydropower, ...
百度试题 结果1 题目When iron rusts, it combines with ___. A. oxygen B. hydrogen C. nitrogen D. carbon dioxide 相关知识点: 试题来源: 解析 A。铁生锈时与氧气结合。选项 B、C、D 都不会使铁生锈。反馈 收藏
It combines with almost all the ele-ments of the periodic table, except for a few transition elements, to form binary compounds of the type E n H m . Some of these compounds have fascinating structures (1,2,3). However the most interesting interaction of hydrogen, is the hydrogen bond....
LSCF membranes are used in an atmosphere of air on feed side and methane on the permeate side. Oxygen transports via the ambipolar conduction mechanism to the permeate side where it combines with methane to form syn-gas which is a mixture of CO and H2. One of the major barriers to commerc...