Solid, liquid, gaseous and plasma.
They are what you call Halogens.The halogens exist ,at a room temperature,in all three states of matter: Solid-Iodine,Astatine; Liquid-Bromine; Gas-Fluorine,Chlorine;
tell whether each fraction is in simplest form. if not, write it in simplest form, tell whether each fraction is in simplest form. if not, write it in simplest form,
No. Elements are made of different forms of atoms, but all these elements are made out of three smaller things: proton, neutron and electron. However, we have discovered that these three are not necessarily the smallest unit of matter that exist. Physicist have found that those three things are in fact made of quarks. And these quarks are probably made of even small things. Science is still trying to find the basic unit of matter.
Matter can exist in four forms: plasma, gas, liquid, solid.
All chemical elements are forms of matter.
Steel is matter, but it does not exist in nature in any abundance. It is an alloy of iron and carbon, and many forms of steel use other elements to improve strength or durability (vanadium, chromium).
elements that can exist in two or more different forms
Matter can exist in many forms.
Each atom can exist in many forms on its own. Then when you combine each of the forms with each of the forms of the other atoms, the number of substances increases exponentially.
solids , gasses , and liquids.
state or phase
This is called a compound.