This document discusses several periodic trends including electronegativity, ionization energy, electron affinity, atomic radius, melting point, and metallic character. It defines each trend and provides a brief explanation of how each trend relates to an element's chemical and physical properties based on its position in the periodic table.

1. Presented by:
Dave Rushel T. Romero

2. Periodic Trends
 Periodic trends are specific patterns
that are present in the periodic table
that illustrate different aspects of a
certain element, including its size and
its electronic properties.

3. Electronegativity Trends
 Electronegativity can be understood
as a chemical property describing an
atom's ability to attract and bind
with electrons.

5. Ionization Energy Trends
 Ionization energy - is
the energy required
to remove an
electron from a
neutral atom in its
gaseous phase.

6. Electron Affinity Trends
 Electron Affinity -
is the ability of an
atom to accept an
electron.

7. Atomic Radius Trends
 Atomic Radius - is
one-half the
distance between
the nuclei of two
atoms (just like a
radius is half the
diameter of a circle).

8. Melting Point Trends
 Melting Points - is the amount of energy
required to break a bond(s) to change
the solid phase of a substance to a
liquid.

10. Metallic Character Trends
 Metallic Character can be defined as
how readily an atom can lose an
electron.