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The isotope with the longest half life is 243Am (half life = 7 370 years) with the atomic weight (Audi et alii, 2003) of 243,061 138 11 +/- 0,000 000 25.

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Q: What is the atomic mass of americium?
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What is americium 242 mass?

The atomic mass of americium-242 is approximately 242 grams per mole.


What is the average atomic mass of the element americium?

IUPAC proposed the atomic weight (243).


What is an atomic mass number for the element americium?

Mass number = Number of protons + Number of neutrons For the isotope 241Am the mass number is 241; for 242Am is 242, for 243Am is 243, etc. Americium has isotopes with mass numbers that range from 231 through 249.


What is the atomic number for americium?

The atomic number of americium (Am) is 95.


Atomic number for americium?

The atomic number of americium is 95.


How many protons electrons and neutrons dose americium have?

There are 19 known isotopes of americium, with neutron counts ranging from 136 to 154. Americium-241, the easiest to produce, has 146 neutrons. Number of neutrons = Atomic weight (rounded) of an americium isotope - 95 Each isotope has a different number of neutrons. Americium has also 95 protons and electrons.


What is the atomic number of americium?

Americium, with the chemical symbol Am, is the chemical element with the atomic number 95.


How much does americium weigh?

1. For the atomic mass of americium see the link below. 2. The density of americium is between 12 and 14 g/cm3, after different sources in litterature.


LList the number of protons electrons and neutrons in americium?

Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons.


What is the atomic structure for americium 241?

Americium has (all the isotopes) 95 electrons.


What is the difference between americium and neptunium?

Neptunium has the atomic number 93 and americium has the atomic number 95.


How many neutrons and electrons are in the element americium?

Americium has 95 electrons and different isotopes can have different numbers of neutrons. The most common isotope is americium-243, which has 148 neutrons.