because fluorine is highly electronegative and is the most reactive non metal.
Most of them do NOT react with water. Only fluorine and to some extend chlorine do. Actually the only good 'water reacting' group of elements is group 1: the alkali metals.
Yes marble is a good choice
It's not waterproof
Marble is a metamorphic rock that was originally limestone, a sedimentary rock, and is composed primarily of the mineral calcite. Granite is an intrusive igneous rock composed mainly of feldspar, mica, and quartz. Marble is softer than granite because of these mineral composition differences and it will also react with weak acids such as vinegar. These properties make marble a good choice for a sculptor, but a bad choice for a kitchen countertop.
Kill yourself actually that is a good choice
because fluorine is highly electronegative and is the most reactive non metal.
Yes, it is a good choice because fluorine is the most reactive halogen; but now is known only HArF.
Most of them do NOT react with water. Only fluorine and to some extend chlorine do. Actually the only good 'water reacting' group of elements is group 1: the alkali metals.
It is an inert gas and so does not react with substances.
Ferrous metals react with oxygen in the atmosphere, forming rust.
yes
Fluorine is wanted because it is good for your teeth but also you need it for rocket fuels.
yes it is.
Yes, it is a very good solvent.
Xenon will light up your world! It's the brightest on the periodic table... Xenon... it's a phoenomnal.
Small amounts of fluorine is good for human teeth and is in many city water supplies.
Not that many. It is wonderfully resistant to most stuff, including oxidation in air. That's why it's a good choice for making jewelry. It can be corroded by caustic alkalis, cyanides, halogens and sulfur, and it is soluble in aqua regia. Platinum can act as a catalyst in a number of situations. The most popular one is as the active element in automobile catalytic converters. Wikipedia has additional information, and a link is provided.