Types of substances Atoms Geometric Structure Molecules Clusters Size Congeries makes the difference Nano materials Electronic Structure Bulk materials
Types of substances Atoms Molecules Clusters Congeries Nano materials Bulk materials Geometric Structure Size makes the difference Electronic Structure
Basic Units Atom The basic building block of all matter.The smallest particle of an element that has the same properties as the element. Composed of an electron cloud and a central nucleus
Atom The basic building block of all matter. The smallest particle of an element that has the same properties as the element. Composed of an electron cloud and a central nucleus. Basic Units
Atomic Structure All the matter around you is made of atoms,and all atoms are made of only three types of subatomic particle, ②electron(-l protons,electrons,and neutrons. proton (+ All protons are exactly the same,all neutron (0) neutrons are exactly the same,and all electrons are exactly the same. There are many elements in the PERIODIC TABLE.Over 100! The thing that makes those elements different is the number of electrons,protons,and neutrons
All the matter around you is made of atoms, and all atoms are made of only three types of subatomic particle, protons, electrons, and neutrons. All protons are exactly the same, all neutrons are exactly the same, and all electrons are exactly the same. Atomic Structure There are many elements in the PERIODIC TABLE. Over 100! The thing that makes those elements different is the number of electrons, protons, and neutrons
Dalton (1803) History of Thomson(1904) positive and negative charges) Atomic models Rutherford(1911) (the nucleus) Understanding Bohr(1913) atomic structure is a (energy levels) first step to understand structure of the matter Schrodinger(1926) (electron cloud model)
History of Atomic Models Understanding atomic structure is a first step to understand structure of the matter
Basic Units Molecule The simplest structural unit of a substance that retains the properties of the substance. Composed of one or more atoms
Molecule The simplest structural unit of a substance that retains the properties of the substance. Composed of one or more atoms. Basic Units