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Why did it take longer to find astatine then any other of the halogens?
Wiki User
∙ 14y ago
1. Astatine is an extremely rare chemical element, very difficult to identify in minerals.
2. The preparation of artificial astatine was dependent on the progress in nuclear physics and technology.
Wiki User
∙ 14y ago
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A slogan for the element astatine?
"Astatine is really rare. Attempt to find some if you dare."
What percentage of the elements are halogens?
In the periodic table we will find 5 halogens, in the coloumn one from the far right (which is the noble gas coloumn). The halogens are, in ascending atomic mass: flourine, chlorine, bromine, iodine, and astatine. As far as percentages go we keep coming up with new synthetic elements (thus the percentage would be dynamic), but last time I checked my table we had somewhere around 112. So.. (5/112) = approximately 4.46%.
What element has 75 protons in period 6 of the periodic table?
At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons
Where on the periodic table would you find the halogens?
halogens are located in 17th group of the periodic table or 2nd group from extreme right.
Why are halogens found in nature only in coumpounds?
Halogens such as fluorine or chlorine are HIGHLY reactive; they always undergo chemical reactions with other elements to form compounds. It's almost impossible to find pure samples of any halogen gas.
What does At stand for in the periodic table?
Astatine, an extremely rare halogen which no-one really have experienced. It is so rare, that if you dug up the whole crust of the earth, you would find what corresponds to an amount equal of your thumb. It is also highly radioactive, which makes it abit uninteresting chemically.
Where on Earth would you find Astatine?
no one really knows how much but it's a really rare element in the earth
What are two symbols for halogens?
We find five halogens in periodic table. Those are non metal elements. Fluorine and chlorine gases are examples.
What family is chlorine?
Chlorine is a member of the halogen (salt-forming) group of elements. You can find them in Group 17 of the periodic table. They include fluorine, chlorine, bromine, iodine and astatine. One of its most common compounds of chlorine is ordinary table salt, sodium chloride (NaCl). Use the link below to the Wikipedia article on this extremely reactive group of elements.
The hypotenuse of a right triangle is 8 cm long One leg is 2 cm longer than the other Find the length of the longer leg to the nearest tenth?
6.6 cm
What is the hypotenuse of a triangle is 10 feet long The longer of the two legs is two feet longer than the other Find the length of the shorter leg?
Short leg is 6 feet.
The hypotenuse of a triangle is 10 feet long The longer of the two legs is two feet longer than the other Find the length of the shorter leg?
The shorter leg is 6 feet long
