“helium”造句，怎么用helium造句

We have a helium nucleus and one electron.

The pebble has about a one millimetre microsphere diameter. The coolant is in fact helium.

Liquid helium is most frequently provided to customers in a liquid container.

Some of this energy congealed into particles, which assembled into light atoms like hydrogen and helium.

To begin with, the laser palette was rather limited: helium-neon and ruby lasers emitted red light, and others produced invisible infrared.

Even if they are hit, though, they do not explode because the helium gas that keeps them airborne is not flammable.

Inert helium, unlike hydrogen, is safer, but hydrogen has to be used for record launchings because of its greater lifting capacity.

Just as in the sun, the chain reaction in the second stage fuses the hydrogen atoms into heavier helium atoms and releases vast amounts of energy in the process.

GIANT inflatable helium balloons.

If helium loses on electron, what do we have?

It also bodes ill for the prospect of fusion using helium-3, a rare helium isotope that is missing a neutron.

The 40 liter container under pressure of 150 atmospheres contains 6 cubic meters of helium.

The adventurer, aged 37, strapped 54 industrial strength helium balloons to his gondola and crossed the 22-mile waterway to the continent

Versus looking at, for example, helium or neon or argon, these are all inert gases, inert meaning essentially do not react, those were grouped together in the periodic table.

However, there is a very attractive reaction between deuterium and a light isotope of helium known as helium-3.

And then we have gas cooled reactors which can use supercritical carbon dioxide or helium.

The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like.

Most big balloons are now filled with helium.

Similarly we see as we go down the table, so as we're going from one row to the next row, so, for example, between helium and lithium, we see a drop; the same with neon to sodium, we see a drop here.

He also invented the Skyhook, an air rescue system that involved an airplane and a large helium balloon.