Q. In what period are the lanthanides found?
period six
Q. In which period can you find the actinides?
The Actinide series contains elements with atomic numbers 89 to 103 and is the sixth group in the periodic table. The series is the row below the Lanthanide series, which is located underneath the main body of the periodic table.
Q. Are actinides in Period 7?
Properties. All elements of period 7 are radioactive. This period contains the actinides, which includes plutonium, the naturally occurring element with the heaviest nucleus; subsequent elements must be created artificially.
Q. Why are lanthanides and actinides in periods 6 and 7?
The reason why Lanthanides and Actinides are located at the bottom of the periodical table is because of their properties and in the block in which electrons fill up. The lanthanides include elements 58 to 71 (fill out the 4f subshell) and the actinides include elements 89 to 103 (fill out the 5f subshell).
Q. Why do lanthanides occur together?
Scientists have created many radioactive isotopes of lanthanum. The physical and chemical properties of the lanthanides are given. The unique characteristic of the chemistry of the lanthanides is their similarity. The elements occur together in nature in large part due to their chemical similarity.
Q. What was the first man-made element?
technetium
Q. How do you know if you need calcium?
A person with a calcium deficiency may experience: muscle aches, cramps, and spasms. pain in the thighs and arms when walking or moving. numbness and tingling in the hands, arms, feet, and legs, as well as around the mouth.
Q. What does calcium deficiency look like in plants?
Symptoms of calcium deficiency first appear on younger leaves and tissues, growth is inhibited, and plants have a bushy appearance. The youngest leaves are usually small and misshapen with brown chlorotic spots developing along the margins, which spread to eventually unite in the center of the leaves.
Q. How can I raise my calcium level quickly?
If you’re avoiding dairy, make a habit of incorporating some of these other calcium-rich foods in your diet:
- Canned sardines.
- Fortified soy, almond and rice milk.
- Fortified orange juice.
- Tofu made with calcium sulfate.
- Canned pink salmon with bones.
- Fortified cereals and English muffins.
- Greens.
- Beans.
Q. Which fruit has the most calcium?
Five dried or fresh figs provide your body with 135 mg of calcium. Papayas and oranges are two other fruits high in calcium.
