Initial
发表于 2025-3-30 11:24:04
Noble Gases: Elements of the Eighth Main Group,all: radon in underground healing tunnels, light bulbs filled with argon, KrF. and perxenates as the strongest known oxidizing agents to date?.This chapter provides you with a brief but comprehensive insight into the world of noble gases. You read correctly: The representatives of this group are so
heart-murmur
发表于 2025-3-30 15:03:25
Titanium Group: Elements of the Fourth Subgroup, titanium is a component of many everyday items and is indispensable for the future from a technological perspective, but zirconium and hafnium also have many applications. Their chemical and physical properties, occurrence, significant production methods, applications, and patents are listed.
bifurcate
发表于 2025-3-30 17:12:00
Vanadium Group: Elements of the Fifth Subgroup,th subgroup of the periodic table of elements with their most important compounds. Vanadium is a component of a series of resistant and hard steels, whereas the hard and chemically relatively inert metals niobium and tantalum are used to produce high-melting alloys for special applications. Isotopes
极大的痛苦
发表于 2025-3-31 00:08:30
Chromium Group: Elements of the Sixth Subgroup,th subgroup of the periodic table of elements with their most important compounds. Chromium is found as an alloy component in hard and resistant steels, however, compounds of chromium-VI are found in the electroplating and leather processing industry. Molybdenum and tungsten go into hard and high-me
克制
发表于 2025-3-31 01:36:56
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morale
发表于 2025-3-31 05:53:52
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Inordinate
发表于 2025-3-31 09:57:22
Cobalt Group: Elements of the Ninth Subgroup,ble (cobalt, rhodium, iridium, meitnerium) with their most important compounds. Cobalt was discovered in 1735, rhodium and iridium at the beginning of the 19th century. The first atoms of meitnerium were produced in 1982..The effect of the lanthanide contraction can also be observed in rhodium and I
浮雕宝石
发表于 2025-3-31 17:11:30
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怎样才咆哮
发表于 2025-3-31 19:24:37
Copper Group: Elements of the First Subgroup,per, silver, gold, roentgenium), whose physical and chemical properties are relatively similar. Copper, silver, and gold have all been known for millennia. The first atom of roentgenium was produced in 1994..In the pair of elements silver and gold, the lanthanide contraction is only weakly noticeabl
ORBIT
发表于 2025-3-31 22:44:04
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