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Hafnium is a rare element with rare applications: - component of control rods for nuclear reactors - component of some alloys - getter in lamps and tubes - electrode for plasma cutters - hafnium dioxide was recently used as an electrical insulator in microprocessors - hafnium carbide has a very great point of melting (the most refractory compound known today) - possible use in weapons (USA)
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What is the most common isotope in hafnium?
Hafnium-174 is the most common isotope of hafnium, making up about 31% of naturally occurring hafnium.
What does hafnium react with?
Hafnium can react with a variety of elements to form compounds, such as oxygen to form hafnium dioxide (HfO2) or with chlorine to form hafnium tetrachloride (HfCl4). It is generally considered to be unreactive at room temperature but can react with strong acids and alkalis under high temperature conditions.
How hard is hafnium?
Hafnium is a dense, ductile metal that is relatively soft compared to other metals, such as steel or titanium. It can be easily machined and formed, but it does have a high melting point and is known for its high resistance to corrosion.
How many protons does Hafnium 138 with a plus 2 charge have?
The atomic number of hafnium is 72. So there is 72 protons.
What ions does hafnium form?
Hafnium typically forms a +4 oxidation state in its compounds, resulting in the formation of Hf^4+ ions. These ions have a charge of +4 and are commonly found in hafnium compounds.
What are the uses of hafnium?
- neutron absorbent in control rods of nuclear reactors - hafnium oxide is used as electrical insulator for microprocessors - hafnium is rarely used as alloying element for very special alloys - the isomer 178m2Hf can be used as a nuclear weapon (emitter of gamma rays) by the United States
Is hafnium malleable?
Hafnium is malleable.
What is the color of hafnium?
Hafnium is a shiny, silvery metal that does not have a distinct color.
Is hafnium combined or uncombined?
Pure hafnium doesn't exist in the nature; hafnium form many compounds.
Can you burn hafnium?
Fine powders of hafnium are pyrophoric.
How many isotopes does hafnium have?
There are 37 isotopes of Hafnium.
What is the most common isotope in hafnium?
Hafnium-174 is the most common isotope of hafnium, making up about 31% of naturally occurring hafnium.
How is Hafnium made today?
Hafnium is found in tandem with zirconium deposits. It is separated from the zirconium during refinement as hafnium chloride. It is then reduced with magnesium to produce pure hafnium.
What is the appearance of hafnium?
Hafnium is a metal, steel grey appearance.
Hafnium is magnetic or non-magnetic?
Hafnium is a single element and therefore nonpolar.
How reactive is hafnium?
Yes, hafnium is reactive, but not like sodium or potassium.
Does hafnium have a high density?
The density of hafnium is 13,31 g/cm3.
