Chlorine and bromine don't kill germs instantly; most are killed within minutes but some can take days.

氯和溴不能立即杀死细菌；多数细菌能在几分钟内被杀死，但有些能存活几天。

When a photon hits a crystal of silver bromide on a film strip, for instance, it knocks an electron off a negatively-charged bromide ion to create an atom of bromine.

例如，光子撞击胶卷表面的溴化银晶体时，从带负电的溴离子上“敲掉”一个电子，生成一个溴原子。

Much of the interest in perovskites comes because those which combine metal atoms with chlorine, bromine or iodine (members of a group of elements called halogens) are semiconductors.

人们对钙钛矿的兴趣很，因为那些将金属原子与氯、溴或碘（卤素元素组的成员）结合在一起就是半导体。

Chlorine levels are down 11.5% since they peaked in 1993, and bromine is at lower levels in the air, dropping 14.5 percent since its 1999 peak, the report said.

报告表示，其中氯的比 1993 年的峰值下降了 11.5%，溴在中的水平比较低，较 1999 年的峰值下降了 14.5%。

Oxygen, nitrogen, fluorine, chlorine, and bromine are basically the One Direction of the periodic table.

氧、氮、氟、氯和溴基本上是元素周期表上的单向乐队。

Newman said the reductions in chlorine and bromine levels came largely because of the limits set in the Montreal Protocol.

纽曼说，氯和溴的降低在很程度上是因为《蒙特利尔议定书》规定的限制。

Local factories also use the water to get minerals -- potash, bromine, sodium chloride, and magnesium chloride, among others.

当地的工厂也利用水来获取矿物质——钾肥、溴、氯化钠和氯化镁等。

Silver halides are just some atoms of silver bound to atoms of any element known as a halogen, which includes things like bromine, chlorine, and iodine.

卤化银由银原子与卤素原子组成，卤素原子包括像溴、氯、碘等元素。

Bromine — which does a better job of eating ozone but exists at lower levels in the air — dropped 14.5 percent since reaching a high point in 1999.

溴对臭氧层的破环作用更，但溴在空中的较低，自 1999 年达到峰值以来下降了 14。5%。

If a halogen, such as bromine, is added in the place of hydrogen, the reaction is called halogenation.

如果用卤素（如溴）代替氢进行反应，这种反应称为卤化。

Only 2 of the 100-something known elements are liquid at room temperature -- bromine and mercury.

在已知的一百多种元素中，只有两种在常温下是液态的——溴和汞。

Like we saw last week, uranium undergoes many different types of nuclear decay, so not only does each uranium atom produce isotopes of krypton and bromine, but that process also produces many other isotopes of other elements.

就像上周看到的， 铀会经历多种不同的核衰变，因此每个铀原子不仅会产生氪和溴的同位素， 还会产生许多其他元素的同位素。

Other molecules can break that double bond as well. If a halogen, such as bromine, is added in the place of hydrogen, the reaction is called halogenation, a water molecule, hydration, oxygen, gas, oxygenation. You get the idea.

其他分子也能断裂该双键。如果用卤素（如溴）取代氢，则该反应称为卤化；若加入水分子，则称为水合；若加入氧，则称为氧化。以此类推。

Halogens are going to have the same valence electrons, but as we go to fluorine, chlorine, bromine and iodine, we're actually going to go from gases, fluorine, chlorine, to liquid bromine and then solid iodine.

卤素将具有同的价电子, 但是当我们进入氟、氯、溴和碘时, 我们实际上将从体、氟、氯进入液体溴, 然后进入固体碘。

He believed he had discerned that like a musical scale every eighth element rhymed in the ways that sodium rhymed with potassium and chlorine with bromine The trouble with Newland's scheme.

他认为自己发现了一个规律，就像音乐中的音阶一样，每隔七个元素就会有一个元素在性质上与前面的一个元素呼应，比如钠和钾、氯和溴之间的关系。但纽兰德的方案存在问题。

The waters are a mineral treasure trove, full of magnesium, salt, bromine, and potash, and tourists treasure the super salty sea for its supposed health benefits.

这些水富矿物质，有镁、盐、溴和钾，游客们也珍视这咸度极高的海水，认为它具有各种健康益处。

If the members were arranged in order of atomic weight, the middle element sodium strontium bromine selenium had a weight that was the average of the lightest and the heaviest of the three Diplyina called this the law of triads.

如果成员按照原子排序，中间的元素钠、锶、溴、硒的重是这三个元素中轻的和重的两个元素重的平均值。迪普利纳将此称为三联律。