What is the properties of americium?

What is the properties of americium?


atomic number 95
melting point above 850 °C (1,550 °F)
specific gravity 13.67 (20 °C, or 68 °F)
oxidation states +2, +3, +4, +5, +6
electron configuration of gaseous atomic state [Rn]5f 77s2

Which substance has the lowest density highest density?

The first chemical element with the lowest density is Hydrogen and the highest density is Osmium.

Is americium a solid?

It’s a solid at room temperature – you’d need to heat it to over 1,000 degrees Celsius to melt it. But americium has one unique quality. It’s the only artificial element – and the only radioisotope – that is routinely found in the home. We all have traces of natural radioactive elements in our houses.

What is the density of americium?

Chemical properties of americium – Health effects of americium – Environmental effects of americium

Atomic number 95
Density 13.67 at 20°C
Melting point 994 °C
Boiling point 2607 °C
Vanderwaals radius unknown

Does lead have a high density?

Lead’s high density, low melting point, ductility and relative inertness to oxidation make it useful.

Which liquid has high density?

So in that the liquid which has the highest density is mercury. It is the only metal which exists as liquid in room temperature other metals are hard and rigid and exist in solid phase. It has a density of about 13.546 grams per cubic centimeter.

Which gas has the highest density?

The more dense carbon dioxide gas has filled the container. Natural gas, methane, is less dense than the carbon dioxide, so it floats to the top of the more dense carbon dioxide….

Densities of Common Elements and Compounds
Substance Density grams per mL
Hydrogen gas 0.000089
Helium gas 0.00018
Air 0.00128

Is americium a strong metal?

Americium is a synthetic radioactive chemical element with the symbol Am and atomic number 95. Americium is a relatively soft radioactive metal with silvery appearance.

Are fire alarms radioactive?

Ionization chamber smoke detectors contain a small amount of americium-241, a radioactive material. They react quickly to fires that give off little smoke. Ionization smoke detectors expose people to a tiny amount of radiation—about 1/100 of a millirem per year.

Does Americium have a high density?

When freshly prepared, it has a silvery-white metallic lustre, but then slowly tarnishes in air. With a density of 12 g/cm 3, americium is less dense than both curium (13.52 g/cm 3) and plutonium (19.8 g/cm 3); but has a higher density than europium (5.264 g/cm 3)—mostly because of its higher atomic mass.

What are some facts about americium?

Facts About Americium. A disc of americium viewed under a microscope. Americium, a silvery-white, synthetic element, is created during nuclear reactions of heavy elements. The element and its isotopes have very few but important uses including smoke detectors found in nearly all buildings and the potential to power future space missions.

How much americium is in smoke detectors?

Most household smoke detectors contain a small amount of radioactive material, usually only 1 Curie of Americium 241 (about 3 micrograms, a minuscule amount).

Is the americium, in smoke detectors, dangerous?

The americium-241 in ionizing smoke detectors poses a potential environmental hazard, albeit a very small one. Disposal regulations and recommendations for smoke detectors vary from region to region. The amount of radioactive material contained in ionizing smoke detectors is very small and thus doesn’t represent a significant radiological hazard.

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