Match the atomic number 4, 6, 11, 15 and 18 with each of the following:
LE
A solid non-metal of valency 3.
A gas belonging to zero group.
Am element with 2 electrons in the valence shell.
Buur
L
A non-metal of valency 4.
Lace
w Ametal with one electron in the third shell.
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w" (and any subsequent words) was ignored because we limit queries to 32 words.
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