thallium (Tl), tshuaj lom neeg, metal ntawm pawg tseem ceeb 13 (IIIa, lossis pawg boron) ntawm lub sijhawm lub sijhawm, tshuaj lom thiab tsis tshua muaj nqi lag luam. Zoo li txhuas, thallium yog ib qho mos, qis-melting keeb ntawm lub zog tensile tsawg.
Puas yog thallium yog metalloid?
Boron tseem yog tib leeg metalloid hauv pab pawg no. Lwm plaub yam hauv pawg-aluminium (Al), gallium (Ga), indium (In), thiab thallium (Tl) - yog tag nrho cov hlau. Pawg 13 cov ntsiab lus muaj peb lub valence electrons thiab muaj kev sib haum xeeb. … Boron yog ib qho nyuaj heev, dub metalloid nrog lub siab melting point.
Vim li cas thallium yog hlau?
Yog li, tsawg tsawg electrons muaj rau cov hlau sib txuas, zoo ib yam li cov khoom nyob sib ze mercury thiab lead, thiab li no thallium, zoo li nws cov congeners, yog ib qho mos, hluav taws xob ua hlau nrog qis melting. taw tes ntawm 304 °C.
Puas yog titanium yog hlau lossis nonmetal?
titanium (Ti), tshuaj lom neeg, silvery grey hlau ntawm Pawg 4 (IVb) ntawm lub sijhawm sijhawm. Titanium yog lub teeb yuag, muaj zog, qis-corrosion qauv hlau thiab yog siv rau hauv daim ntawv hlau rau cov khoom hauv cov dav hlau ceev.
Cov khoom noj twg muaj thallium?
thallium theem ( watercress, radish, turnip thiab ntsuab cabbage) yog tag nrho cov nroj tsuag Brassicaceous, ua raws li Chenopods beet thiab spinach. Ntawm thallium concentration ntawm 0.7 mg / kg hauv av tsuas yog taum ntsuab, txiv lws suav, dos, taum pauv thiab lettuce yuav muaj kev nyab xeeb rau tib neeg noj.
