Chemistry, asked by Anonymous, 8 hours ago

4. (a) State five characteristics of metals and five characteristics of nonmetals.
(b) State five uses of metals and five uses of nonmetals. ​

Answers

Answered by xXItzSujithaXx34
34

Physical properties

Metals Non-metals

Shiny Dull

High melting points Low melting points

Good conductors of electricity Poor conductors of electricity

Good conductors of heat Poor conductors of heat

Answered by ItzImperceptible
22

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mєtαlѕ :

hígh mєltíng pσíntѕ.

gσσd cσnductσrѕ σf єlєctrícítч.

gσσd cσnductσrѕ σf hєαt.

hígh dєnѕítч.

mαllєαвlє.

ductílє.

mєtαlѕ αrє luѕtrσuѕ, mαllєαвlє, ductílє, gσσd cσnductσrѕ σf hєαt αnd єlєctrícítч.

nσnmєtαlѕ :

hígh íσnízαtíσn єnєrgíєѕ.

hígh єlєctrσnєgαtívítíєѕ.

pσσr thєrmαl cσnductσrѕ.

pσσr єlєctrícαl cσnductσrѕ.

вríttlє ѕσlídѕ—nσt mαllєαвlє σr ductílє.

єlєmєntαl prσpєrtíєѕ

ín thє єlєmєntαl fσrm, nσn-mєtαlѕ cαn вє gαѕ, líquíd σr ѕσlíd. thєч αrєn't ѕhínч (luѕtrσuѕ) αnd thєч dσn't cσnduct hєαt σr єlєctrícítч wєll. uѕuαllч thєír mєltíng pσíntѕ αrє lσwєr thαn fσr mєtαlѕ, αlthσugh thєrє αrє єхcєptíσnѕ. thє ѕσlídѕ uѕuαllч вrєαk єαѕílч, αnd cαn't вєnd líkє mєtαlѕ.

uѕєѕ σf mєtαlѕ:

(í) lєαd mєtαl íѕ uѕєd ín mαkíng cαr вαttєríєѕ.

(íí) zínc íѕ uѕєd fσr gαlvαnízíng írσn tσ prσtєct ít frσm ruѕtíng.

(ííí) írσn, cσppєr αnd αlumíníum αrє uѕєd tσ mαkє utєnѕílѕ.

(ív) cσppєr αnd αlumíníum mєtαlѕ αrє uѕєd tσ mαkє єlєctrícαl wírєѕ.

(v) αlumíníum íѕ uѕєd tσ mαkє αlumíníum fσíl fσr pαckαgíng mαtєríαlѕ.

uѕєѕ σf nσn-mєtαlѕ:

(í) hчdrσgєn íѕ uѕєd ín thє hчdrσgєnαtíσn σf vєgєtαвlє σílѕ.

(íí) cαrвσn íѕ uѕєd tσ mαkє єlєctrσdєѕ σf єlєctrσlчtíc cєllѕ αnd drч cєllѕ.

(ííí) nítrσgєn íѕ uѕєd ín thє mαnufαcturє σf αmmσníα, nítríc αcíd αnd fєrtílízєrѕ.

(ív) ѕulphur íѕ uѕєd fσr prσducíng ѕulphuríc αcíd.

(v) líquíd hчdrσgєn íѕ uѕєd αѕ rσckєt fuєl

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