Shells are primarily calcium, just like in human and animal bones.
Sulfur is a pure chemical element, so the only thing that makes up sulfur is, well, sulfur.
The L shells holds only 8 electrons. The M shell holds 8 electrons. However, it can hold up to 18 when the atomic number increases.
A monatomic molecule is made up of only one kind of atom (mono means one and atomic is lbasically the word atom). Argon is monatomic because it has a full outer shell of electrons and so generally doesn't form chemical bonds, this also makes it a noble gas.
Actually they gain one from the other atom so it loses it to make a whole circle. There can only be 2 atoms on the 1st shell then 8 on the 2nd shell then 8 again on the 3rd shell. Because the outer shells want to always fill their shells up so they lose some and the other gains it.
Lobsters are crustaceans, and chitin is the hard polysaccharide substance that makes up the outer shell (exoskeleton) of crustaceans. Chitin also makes up the exoskeletons of other arthropods (insects, etc.). It helps to strengthen the cell walls of fungi and the shells of mollusks as well.
The chemical formula of Anhydrite is Calcium Sulfate. Sometimes the shell of anhydrite can be composed of strontium, depending where you find it.
mostly calcium
no because they cant live without their shell
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NO ducks dont eat crawfish, they eat seals. Then they throw up and bathe in their throwup
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The atoms.
The chemical formula of water is H2O.
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false
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The chemical change is made by these following:- 1. Temperature 2. pressure 3. Nature of chemical