structure of matter

three types of matter according to physical nature are

• solid

• mixtures

• liquid

• compounds

matter according to chemical composition can be divided into

• solid

• mixtures

• liquid

• pure substances

two types of mixtures are

• homogenous

• heterogenous

• homosapiens

• heteroatomic

example for a homogenous mixture is;

An example for a heterogeneous mixture is;

select all the compounds given below

• O₂

• Fe₂O₃

• H₂O

• Fe

the building block of matter is

• molecule

• substance

• compound

• atom

main sub-atomic particles of an atom are;

charge of electrons is

• negative

• positive

• neutral

charge of protons is

• negative

• positive

• neutral