Mostly I need to know about Se. I'm debating whether it is molecular or covalent. I'm leaning toward covalent but the melting point of Se seems to be uncharacteristically low for a covalent solid. Molecular would better fit in that aspect but Se, the way it is presented in the question, isn't a molecule.
2007-06-05 07:01:25 · 4 answers · asked by Linduh. 3 in Science & Mathematics ➔ Chemistry
Ionic : Na2SO4
Metallic : Sn
Covalent : SiO2, Se
Molecular : S8
2007-06-05 07:18:39 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Sn, Se would be Mettalic.
S8, SiO2, and Na2SO4 are covalent.
Selenium is a metal it is in the transition d group. If it is not bound to anything besides itself it should be just mettalic.
2007-06-05 07:54:15 · answer #2 · answered by dollface1483 1 · 0⤊ 0⤋
A is network covalent B is molecular C is ionic
2016-05-17 10:20:52 · answer #3 · answered by ? 3 · 0⤊ 0⤋
Sn, Se - metallic
S8 - molecular
SiO2 - covalent
Na2SO4 - covalent
Sn and Se are both d-block, --> metallic
S8 is a nonmetal with one type of atom --> molecular
SiO2 contains two nonmetals --> covalent
Na2SO4 contains a metal (Na+) and a nonmetal (SO42-), a cation and anion, respectively --> ionic
2007-06-05 08:27:54 · answer #4 · answered by wacjr79 3 · 0⤊ 0⤋
molecular
2007-06-05 07:04:19 · answer #5 · answered by Kyle M 2 · 1⤊ 0⤋