Potassium
Probably Francium.
The alkali metals. Group 1A.
yes it is a dehydrating agent but the problem is that phosphorous pentoxide not survives lastlong. Bcz it is very reative and unstable
Francium is so unstable enough cannot be synthesised and stored long enough to react with water, but assuming that the trend down the group continues it will be even more explosive that Cesium
At 12pm(noon) the sun is just on the earth's equator.At this time if any person living in equatrial country see the sun,he will find it quite on his head i.e.in upward and not in any direction. In the same time if a person in northen hemisphere(Asia,Europe,north America) sees the sun,he will find it up,but a little southwards.This 'a little' increases with increase in the distance between him and equator.So we get more light in the south direction. Similarly reative to the equator in sourthen hemisphere(Australia,lower Africa and Australia) we find sun a little northwards in the sky.So we get more light in north direction(because sun is there).Hence the norhern side of houses or trees gets more light.
Helium is a very non reactive gas.
Probably Francium.
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The alkali metals. Group 1A.
Please note that every property of an element depends on protons so one property is often hard to sort out from another since each property has its own trends in relation to the number of protons (atomic number). The first property that indicates the number of protons is a nanoscopic one, atomic width. A property that can indicate the relative number of protons is density. That is chemical density not structural density. Air voids in a solid can make the density seem smaller. Most solids (that is, true solids devoid of air gaps and porosity) are heavier than water. So if you wanted to find density differences in known solids (and reative atomic numbers) you would hit the object with x-rays and record the relative amounts that came through to the exposure film. If you have access to a Scanning Electron Microscope using primarily the back scatter contrast method can give you an image depicting relative differences in density. Remember though it must be a true solid. Many elements have isotopes which essentially are more dense atoms withe the same atomic number. These elements are still relatively close to the non-isotopic element since there is no absolute way to.
all the metals are reactive but the most reative metal is iron.
The British Isles are a group of islands off the northwest coast of continental Europe
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Hydrometer? Reative humidity, measured in per-cent. (Percentage of the concentration of water vapor which saturates the local atmosphere).
yes it is a dehydrating agent but the problem is that phosphorous pentoxide not survives lastlong. Bcz it is very reative and unstable