Basic Atomic Structure,

Fusion, Isotopic Notation

I. ______Particles

Name / Charge / Symbol / Location / Mass
proton / approx. _ amu (____ amu)
neutron / approx. _ amu (____ amu)
electron / ______amu (______)

·  subatomic particle = a particle found ______ the atom

·  nucleus = ____, _____ area in _____ of atom (__ & __ found here).

·  amu (______) = exactly __/__ the mass of _____-__ atom.

·  in a ______atom, -number of p+ = number of e-- (# of ___ varies).

·  isotope = a ______ of an atom that contains a ______number of ______ compared to others (still has _____ number of __).

II. Nuclear Fusion

·  fusion = nuclear reaction involving 2 ______with ___ masses ______ to form one nucleus of _____ mass.

·  fusion can only take place at ______high temps (______of °C), since the particles must be moving extremely ____ to be able to react.

·  temps like this can be found in the center of _____, such as our ____.

·  fusion ______ have not yet been built yet on Earth.

·  fusion reactions also release a great amount of ______(__ = ___).

II. ______the Atom

·  atomic symbol = a ______letter (or 1 capital, 1 ______) that symbolizes an element. Usually comes from ______name, but can also originate from ______language.

·  isotopic notation = way of writing the ______to include the number of ______and ______ (in ______).

1.  -_- = (just ______for carbon)

2.  -carbon-12- = form of C with ___ total ______in the nucleus.

3.  -C-12- = another way to write #2 (using ______instead of ____)

4.  -12C- = another way to write #2

III. Atom Numbers

·  ______number = -number of __-. Written in _____-____-hand corner of symbol. Identifies the ______.

·  ______number = -number of __ & __-. Identifies the ______. Written in ___-____-hand corner.

·  charge = results from a ____ or ___ of electrons from the ______ amount (same as number of ______).

·  remember, electrons are ______, so….

·  positive charges result from an atom ______ electrons

·  negative charges result from an atom ______ electrons

·  atomic ____ (or weight) = ______of all the ____ numbers of all the ______of an element. Not written on _____, but is found on ___.

Fill in the missing information using your periodic table:

Name of Isotope / Symbol / Atomic Number / Mass Number / Charge / # of Neutrons / # of Protons / # of Electrons
fluorine-___ / 0 / 10
______-__ / 12 / 11 / 10
cobalt-60 / +2 / 27
oxygen-17 / 8 / -2
______-__ / 76As__ / 36

Remember:

1.  # of ______and ______are always the same

2.  # of neutrons = ______minus # of ______

3.  ______is what’s attached to the name

4.  The ______is NOT the ______!!!