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What element in group 7 is so rare that there is only a few grams of it on earth?
Wiki User
∙ 13y ago
Francium
Wiki User
∙ 13y ago
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What is the rarest object on the earth?
The earth element ''Astatine'' which there is only 30-40gram of on the whole entire earth.
Is carbon active or inert?
Carbon is an active element in Group 14. There are only a handful of elements that are inert, and they are located in Group 18.
Is Methane a natural element that makes up the earth's atmoshpere?
Methane is a compound, not an element. It is a minor component, accounting for only 0.00018% of our atmosphere.
What element is located in the first row of group 1 why is the box for this element separated from the rest of group 1 by a slight space?
Hydrogen. it stands alone because it is made up of one proton one nuetron and one electron. by only having one of each gives this element a nuetral charge.
What element has 2 electrons and a plus 2 ion?
All elements in column 2 of the periodic table consistently form ions with a charge of two plus. This column is commonly referred to as the Alkaline Earth Metals. please feel free to send me a trust point if this was helpful =]
What element in group 7 is so rare that there are only few grams of it on earth?
I don't know this answer for sure, but I would bet that it is astatine. All of the other group 7 elements (flourine, chlorine, bromine and iodine) are all relatively plentiful.
The alkaline earth element having the largest atomic radius is found in period?
7th period because atomic size down the group increases. And Alkali Earth metals are found only in Group 1. The element is in Group 1 and period 7
What is the rarest object on the earth?
The earth element ''Astatine'' which there is only 30-40gram of on the whole entire earth.
Which group in the periodic table contain only metal?
There are many groups in the periodic table that only contain metals. There are the Alkali metals, the Alkaline earth metals, Lanthanoids, Actinoids, Transition metals, and the Post-transition metals.
What is The only group 16 element that is gas at room temperature?
In group 16 on the periodical table the only element that is a gas at room temperature is oxygen (O).
What is the smallest number of a group?
You can have a Group with only one element: 0 if it an additive group or 1 if it is multiplicative.
What element is in the halide group and is the only liquid?
the only liquid halide is bromine
What element is the only nonmetal in group 14?
Carbon (C)
How much does Mercury weigh?
The planet Mercury has no weight, as this would be expressed within a gravitational field. The mass of Mercury is estimated as 3.3 ×10²³ kilograms (only about 5.5% of Earth's mass).The element Mercury has a density of 13.5 grams/ml (13.5 grams/cm3).
How much does Mercury?
The planet Mercury has no weight, as this would be expressed within a gravitational field. The mass of Mercury is estimated as 3.3 ×10²³ kilograms (only about 5.5% of Earth's mass).The element Mercury has a density of 13.5 grams/ml (13.5 grams/cm3).
What is the only element that has not been isolated from the earth's crust?
technetium
Which group is made up of only one kind of atom?
element!
