Iron is the least poisonous to human beings.
The electron configuration of plutonium is [Rn]5f67s2.
Iron, Boron, Plutonium and may others.
Although not poisonous as such - Prolongued inhalation of the chemical may effect the lungs... possibly resulting in siderosis.
Iron
Iron is carried throughout the human body in the red blood cells. The average amount of iron in the body varies from 60-170, depending on age and gender.
Plutonium, lead, and mercury are all heavy metals. If you knew nothing but that, you should be able to guess that the correct answer is iron. (It might also help to try the various elements in the phrase "Fortified with ____!", and see which of them sounds most familiar from the labels on vitamins or cereals.)
The masses of the nucleons are independent from the type of nucleus.
Plutonium electronegativity on Pauling scale is 1,28. Iron electronegativity on Pauling scale is 1,83. Plutonium is chemically more reactive.
The electron configuration of plutonium is [Rn]5f67s2.
The neutral atom of plutonium has no charge.
Plutonium, Iron
Plutonium, with a density of 19,816 g/cm3 at room temperature.
The human body naturally contains iron in the bloodstream. However, too much of it in the bloodstream can be harmful to you. However, naturally-found iron is not otxic or harmful in any way, unless taken internally. Hope this helped.
Iron, Boron, Plutonium and may others.
The 3 least abundant elements are Francium (Fr), Astatine (At),and Plutonium (Pu). Francium and Astatine come from the decay of Thorium (Th) and Uranium (U), are much more abundant. At any one time in the entire earth's crust there is only 30 grams of Francium and 25 grams of Astatine. Plutonium is only found in Uranium minerals. The amount of Plutonium is microscopic. Here are the 3 least abundant elements. Lowest 3. 89. Francium 90. Astatine 91. Plutonium
Iron, Boron, Plutonium and may others.
Examples of metals: iron, nickel, uranium, thorium, sodium, niobium, plutonium, etc.