a. Na is classified as a metal while I2(iodine) is a non-metal. However, Na has no luster while I2 has. Which criterion for metals and non-metals is more definitive and reliable?
2007-08-22 22:19:19 · 4 answers · asked by dk 1 in Science & Mathematics ➔ Chemistry
Reacting sodium with dilute HCl is likely to result in a ball of molten sodium metal, on fire, shooting out of the test tube.
Freshly-cut sodium is shiny - it just dulls over very quickly due to reaction with oxygen in the air.
2007-08-22 22:37:18 · answer #1 · answered by Gervald F 7 · 0⤊ 1⤋
Sodium is used quite often in labs. But you must be experienced to handle it properly. Sodium can cause fires when mixed with nothing but water.
Sodium does have a strong luster, but you can only see it for a short time. When it's cut, before it oxidizes in the air, it has a strong luster. But before you can get it back under the mineral oil, it's likely to dull. And luster must be taken along with the other criteria for classifying metals such as malleability, ductility, ect...
2007-08-23 00:08:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Sodium is a element of the gang a million metals, meaning it incredibly, incredibly needs to do away with 1 electron. you will discover this in case you place it in a beaker of water. it incredibly is exceedingly reactive in its elemental state, so it incredibly is frequently blended with different factors to variety compounds. it incredibly is safer for all events in contact.
2016-11-13 05:48:02 · answer #3 · answered by ? 4 · 0⤊ 0⤋
It is very reactive and may cause explosions even when mixed with water only.
2007-08-22 22:40:42 · answer #4 · answered by jaygee 2 · 0⤊ 0⤋