The document discusses the periodic table of elements. It explains that the periodic table organizes all known elements and provides information about each element's atomic number, symbol, atomic mass, and number of protons, electrons, and neutrons. The document outlines properties of metals, nonmetals, and metalloids. Metals are conductive, malleable, and can corrode, while nonmetals are brittle, low density, and poor conductors. Metalloids have some properties of both metals and nonmetals.

1. The Periodic Table of
Elements

2. Elements
Science has come
along way since
Aristotle’s theory of Air,
Water, Fire, and Earth.
Scientists have
identified 92 Natural
elements, and created
about 28 others.

3. Elements
The elements, alone
or in combinations,
make up our bodies,
our world, our sun,
and in fact, the
entire universe.

4. The most abundant element in the
earth’s crust is oxygen.

5. I am Dmitri Mendeleev!
I made the PERIODIC TABLE !

6. What is the PERIODIC TABLE?
oShows all known elements
in the universe.
oOrganizes the elements
by chemical properties.

7. Periodic Table
A great deal of information about an element can be gathered
from its position on the period table.
Understanding the organization and plan of the periodic table
will help you obtain basic information about each of the 118
known elements.

8. How do you read the
PERIODIC TABLE?

9. What is the ATOMIC NUMBER?
oThe number of
protons found in the
nucleus of an atom
Or
oThe number of
electrons surrounding
the nucleus of an
atom.

10. What is the SYMBOL?
oAn abbreviation of
the element name.

11. What is the ATOMIC MASS?
oThe number of protons
and neutrons in the
nucleus of an atom.

12. How do I find the number of protons,
electrons, and neutrons in an element
using the periodic table?
o # of PROTONS = ATOMIC NUMBER
o # of ELECTRONS = ATOMIC NUMBER
o # of NEUTRONS =
Atomic mass number (rounded off)
minus the atomic number

13. Periodic Table

14. Metals

15. Properties of
Metals
Metals appear to the left of the dark ziz-zag line on
the periodic table. Most metals are solid at room
temperature.

16. Properties of
Metals
Metals have luster.
This means they are
shiny

17. Properties of
Metals
Ductile
metals can be
drawn into wire.

18. Properties of
Metals
Malleable
metals can be
hammered
into sheets

19. Properties of
Metals
Metals have a high melting point. They are
also very dense.

20. Properties of
Metals
Conductors
Metals are good
conductors of
electricity and
heat

21. When you leave a spoon in a cup of hot drink, the bit
poking out of the drink gets hot. Why? Conduction!
METALS are the best conductors of heat.
This is because the electrons in metals move more freely than
in non-metals, allowing the heat energy to travel across the
metal.
For example, when the spoon touches the hot drink, the heat
from the drink excites the electrons in the metal, and the
electrons transfer the energy from one electron to another,
carrying the heat all the way up the spoon quickly.
Best conductors:
silver and copper

22. Physical Properties of METALS
Metals are good conductors of electricity.
Copper, silver, and gold are good electrical
conductors. In a conductor, electric current
can flow freely. Since metals have free
electrons, they can carry a charge easily.
Copper Wiring

23. Properties of
Metals
A chemical property of
metal is its reaction
with water and
oxygen. This results
in corrosion and
rust.

24. Nonmetals

25. Properties of Nonmetals
Nonmetals occur to the right of the dark zig-zag on the
periodic table. Although Hydrogen is in family 1, it is also
a nonmetal. Many nonmetals are gases at room
temperature.

26. Properties of Nonmetals
Nonmetals do not
have luster;
they are dull.

27. Properties of Nonmetals
Brittle
Nonmetals are
brittle so they
break easily.
This means
nonmetals ARE
NOT ductile or
malleable.

28. Properties of Nonmetals
Nonmetals
have low
density.

29. Properties of Nonmetals
They also have a low
melting point. This
is why they are
poor conductors
of heat and
electricity.

30. Metalloids

31. Properties of Metalloids
Metalloids can be found clustered around the dark
zig-zag line that separates metals and
nonmetals.

32. Properties of Metalloids
Metalloids (metal-like)
have properties of
both metals and
nonmetals.

33. Properties of Metalloids
Metalloids are solids
that can be
shiny or dull.

34. Properties of Metalloids
They conduct
electricity and
heat better than
nonmetals but not
as well as
metals.

35. Properties of Metalloids
Metalloids are
malleable and
ductile