Chemical Elements | Part 5 | Non-metals
Nonmetallic elements that are lusterless and nonmalleable; they are mostly gases and solids and are
usually poor conductors of heat and electricity
lusterless = not bright or shiny
nonmalleable = not able to be easily changed into a new shape or made to do something different from what is usual
comprise = to contain, to constitute the whole
uranium enrichment = removing of unwanted uranium-238, making the concentration of uranium-235 atoms higher
antistick coating = a thin covering layer designed to prevent one surface sticking to another
dye = a natural or synthetic substance used to add a colour to or change the colour of somethin
teargas = a chemical weapon that stimulates the nerves of the lacrimal gland in the eye to produce tears
revulsives = a substance which changes the distribution of blood by revulsion(=the act of driving backward)
Pay Attention To Pronunciation
thyroid [ˈθʌɪrɔɪd]
astatine [ˈastətiːn]
bromine [ˈbrəʊmiːn]
chlorine [ˈklɔːriːn]
fluorine [ˈflʊəriːn],[ˈflɔːriːn]
pyrotechnics [ˌpʌɪrə(ʊ)ˈtɛknɪks]
pharmaceutical [ˌfɑːməˈs(j)uːtɪkl]
See also