Chemistry is the study of atoms and how they combine to form compounds. Atoms are made up of protons, neutrons, and electrons. The periodic table organizes all known elements based on their atomic structure and properties. Atoms of different elements combine in multiple ways to form compounds with unique characteristics unlike the individual atoms. Understanding atomic structure and how elements interact is fundamental to chemistry and impacts many areas of science, technology, and medicine.

2. • Chemistry is the basis of life as we know. Everything around you has
chemistry
• The summarized idea of chemistry is the properties and functions of the
smallest units of matter known as atoms.
• Atoms are what make up EVERYTHING IN THIS WORLD!!! Even you!!!
• Atoms can combine in numerous ways to create compounds that have
different properties than just the atoms simply combined.

3. • The atom is a small unit consisting of three subatomic particles known
as protons, electrons, and neutrons.
• These three particles are organized with in the atom in a certain way
that results in the specific atoms characteristics.

4. • In an atom, there are positively charged particles called
protons, negatively charged particles called electrons, and neutral
particles called neutrons.
• The protons and neutrons are in the middle of the atom while the
electrons circle around this proton/neutron structure called the nucleus.
•
Every different atom on the periodic table has a differ number of these
Atoms percent weight
particles.
graph
Protons
Electrons

5. • The periodic table is what chemists use to show specific types of atoms
• It is organized by the properties of the atoms, number of subatomic
particles of the atom, and size of the atom.
• Going across the periodic table is going through its groups while going
down it is going across periods.
• These atoms that are on the periodic table are called elements; every
atom of an element is the same, but atoms of different elements are
different.

6. • Numbers and symbols on the periodic table usually tell a number of
properties of an atom.
• The one or two letter symbol tells us the name of the atom Ex: C=
Carbon
• The atomic number (the number on top of the element) is the number of
protons and electrons in the atom of that element since the elements
usually have a neutral overall charge Ex: Carbon’s is 6 so it has 6
protons and electrons.
• The atomic weight (the number below the element symbol) is used by
subtracting the number of protons from it (the atomic number) and
equaling the number of neutrons Ex: Carbon’s is 12 so 12-- 6= 6 so
carbon has six neutrons.

7. • The periodic table is not only sorted by increasing numbers of particles
but it is also organized into types of metals and special groups
• To the left of the table you will find the metals in groups 1-2A
• In groups 3B – 2B is all transition metals
• Below a diagonal line from group 3A’s boron to 6A’s Tellurium is where
you will find the metalloids.
• Above that line is where the nonmetals are.

8. • All groups except for the ones in the transition metals and metalloids all
have similar characteristics
• 1A is the alkali metals
• 2A is the alkali earth metals
• 6A is the calcogens
• 7A is the halogens
• 8A is the noble gases which are
the most stable elements on the
table meaning they do not like
to change

9. • This is what the people in the field of chemistry deal with on a daily
basis
• The elements are to great importance to us because, everything is made
up of one or more of these elements
• Learning these concepts in chemistry may even interest you into a
certain career field
• Doctors, physicians, physical therapist, and etc. all have to know and
work with chemistry
• Most of all YOU WILL BE DEALING WITH IT A LOT MORE IN LATER
EDUCATION!