- helium-group gases
- gazy szlachetnehelowce
English-Polish dictionary for engineers. 2013.
helium-group gases
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helium group — noun the series of inert gases • Hypernyms: ↑series * * * noun : the group of elements forming group zero of the periodic table : the group of inert gases … Useful english dictionary
Helium atom scattering — (HAS) is a surface analysis technique used in materials science. HAS provides information about the surface structure and lattice dynamics of a material by measuring the diffracted atoms from a monochromatic helium beam incident on the sample.… … Wikipedia
Helium — otherusesHelium (He) is a colorless, odorless, tasteless, non toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the… … Wikipedia
Helium — Eigenschaften … Deutsch Wikipedia
Helium-3 — Eigenschaften … Deutsch Wikipedia
Helium-4 — Eigenschaften … Deutsch Wikipedia
helium — /hee lee euhm/, n. an inert, gaseous element present in the sun s atmosphere and in natural gas, and also occurring as a radioactive decomposition product, used as a substitute for flammable gases in dirigible balloons. Symbol: He; at. wt.:… … Universalium
Group (periodic table) — The periodic table of the chemical elements. The columns represent the groups In chemistry, a group (also known as a family) is a vertical column in the periodic table of the chemical elements. There are 18 groups in the standard periodic table,… … Wikipedia
helium — /ˈhiliəm / (say heeleeuhm) noun an inert gaseous element present in the sun s atmosphere, certain minerals, natural gas, etc., and also occurring as a radioactive decomposition product. Symbol: He; relative atomic mass: 4.0026; atomic number: 2;… …
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
Anti-Helium — Strukturformel Allgemeines Name Schwefelhexafluorid Andere Namen Schwefel(VI) fluorid … Deutsch Wikipedia
