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Atoms,
Energy & Atomic Spectra
1.
What 4 elements did people first think that all things were made of? 2. How many elements do we know of now? 3.
For each of the “fathers” of Atomic Theory, what was their
contribution?
4. Draw and label the basic structure of the atom: 5.
Give a comparison for the relative size of the electrons and the nucleus. 6.
What was Rutherford’s experiment and how did it help prove the fact
that atoms are mostly empty space? 7.
a. What are the two particles and their charges, which make up the
nucleus? b.
What charge do the electrons carry? 8.
a. Define Atomic Number: c.
How are the number of protons and the number of electrons related? d.
Define Atomic Mass: 9.
What part of the atom is the place where real chemistry takes place? 10.
What are electron shells? 11.
How many electrons can each shell hold?
12.
Which shells fill up first with electrons? 13.
Draw and fill in the electrons shells for #9 Fluorine and #13 Aluminum:
14.
What happens when an atom is energized through heat or
electricity? 15.
What happens when an atom is no longer energized?
What is given off? 16.
How do atoms of each different element behave when energized? 17.
Give examples of atoms/elements being energized and what color they
produce: a.
Flame tests:
b.
Electricity:
18.
a. What is the
Electromagnetic Spectrum? b.
What are the 7 types of Electromagnetic Waves from longest to shortest
wavelength?
19.
For each type of spectra, define and give examples.
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contact: school@communityschoolhouse.org |
The
21st Century