Download Chemistry Chapter 2 Review

Chemistry
Chapter 2 Review

Matter: Anything that takes up space and
has mass.
Element vs. Compound?

92 elements are naturally occuring (in nature)
 You
 O,
need to memorize the following:
C, H, N, Ca, P, K, S, Na, Cl, Mg
(C, H, O, and N = Life)
Properties of an Atom
Terms to know:
Neutron:
 Protons:
 Electrons:
 Atomic Number:
 Atomic Mass:
 Isotope:

Isotope
Electrons
Electron Energy
Valence Electrons
#
of electrons in the
outermost shell,
responsible for
chemical bonding.
Noble Gases?
Types of Bonds
 Ionic
 Covalent
 Polar
vs Non-polar
 Single, double, triple
 Hydrogen
 Metallic
Interactions of Matter
In order to achieve stability, an atom will
either gain, lose, or share e-s, which will
change the physical and chemical
characteristics
 Ionic
Bonds – transfer of e-s
Interactions
of Matter
 Covalent
Bonds –
sharing e-s;
can be
single,
double, or
triple bonds
Interactions of Matter
Covalent Bonds – unequal
sharing of e-s
 Polar
Interactions of Matter
and Van der Waals –
interaction between slight charges
 H-bonds