What is the density of promethium?
7.26 g/cm3
What is special about promethium?
Promethium is the only rare earth, radioactive metal on the periodic table, according to Chemicool. It can be produced by bombarding neodymium-146 with neutrons to become neodymium-147, which beta decays over its 11-day half-life into promethium-147, according to the Jefferson Laboratory.
What is the meaning of promethium?
: a radioactive metallic element of the rare-earth group obtained as a fission product of uranium or from neutron-irradiated neodymium — see Chemical Elements Table.
What is promethium atomic mass number?
61
What elements can kill you?
So here is a list of substances that are more poisonous than their LD50 values might indicate.
- Botulinum toxins. Even though some of them are used in the cosmetic industry (including in botox), the botulinum family of neurotoxins includes the most toxic substances known to man.
- Snake toxins.
- Arsenic.
- Polonium-210.
- Mercury.
Why is it called promethium?
Promethium is named after Prometheus of Greek mythology who stole fire from the Gods and gave it to humans.
What is the rarest element?
element astatine
Is promethium harmful to humans?
Promethium has no role to play on living things and is slightly dangerous because of its intense radioactivity.
What is the discovery date of arsenic?
1250
What are the benefits of arsenic?
Some forms of arsenic are used as medicine. Despite serious safety concerns, arsenic is often used as a part of extremely diluted homeopathic remedies that are used for digestive disorders, food poisoning, sleep problems (insomnia), allergies, anxiety, depression, and obsessive-compulsive disorder (OCD).
Where do you find arsenic in everyday life?
Organic arsenic compounds are found mainly in fish and shellfish. In the past, inorganic forms of arsenic were used in pesticides and paint pigment. They were also used as wood preservatives and as a treatment for a variety of ailments. Today, usage of arsenic-containing pesticides and wood preservatives is restricted.
What products contain arsenic?
The highest levels of arsenic (in all forms) in foods can be found in seafood, rice, rice cereal (and other rice products), mushrooms, and poultry, although many other foods, including some fruit juices, can also contain arsenic.
How do you remove arsenic from your body?
Treatment involves bowel irrigation, medication, and chelation therapy. It is rare to find dangerous amounts of arsenic in the natural environment. Areas with dangerous arsenic levels are usually well-known and provisions exist to prevent and handle the risk of poisoning.
How does arsenic affect the body?
Long-term exposure to arsenic from drinking-water and food can cause cancer and skin lesions. It has also been associated with cardiovascular disease and diabetes. In utero and early childhood exposure has been linked to negative impacts on cognitive development and increased deaths in young adults.
What organs are affected by arsenic?
Arsenic affects a broad range of organs and systems including:
- Skin.
- Nervous system.
- Respiratory system.
- Cardiovascular system.
- Liver, kidney, bladder and prostate.
- Immune system.
- Endocrine system.
- Developmental processes.
How does arsenic affect the brain?
Arsenic appears to have toxic effects on neurotransmitters involved in cell-to-cell signaling within the brain. A study of rats demonstrated that arsenic induced regional increases in levels of dopamine, serotonin, and their metabolites and also induced a decrease in norepinephrine levels in discrete brain regions.
Does arsenic cause memory loss?
Over the past two decades, various epidemiological reports have shown that arsenic exposure may alter cognitive function, particularly learning and memory during childhood.
Does arsenic affect memory?
Recently, it has been demonstrated that exposure to arsenic could induce alterations in memory and attention [3–6]. Long-term exposure to arsenic significantly affected pattern memory and switching attention in students [4].