Transcript Atoms and Periodic Table Review

Jeopardy
The Atom
Periodic
Table
Misc. 1
Electrons
Elements and
Radioactive Decay
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Final Jeopardy
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What two subatomic particles can be
found in the nucleus of an atom?
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Protons and neutrons
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What charge do each of the subatomic particles in the
nucleus have?
Protons – Positive
 Neutrons – Neutral
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What subatomic particle is found in energy levels
surrounding the nucleus and what charge does it
have?
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Electron - negative
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How many possible energy levels are there?
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7
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What are the maximum number of electrons that
can exist in the 3rd, 4th, 5th, 6th, and 7th energy
levels?
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18
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What is the periodic table composed of?
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The elements that make up all mater.
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What are the columns called?
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Families.
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What does each family tell us about the number
of electrons in the outer energy level?
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The number of electrons there are in that
energy level.
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What are the rows called?
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Periods
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What does each period (row) tell us about the
number of energy levels?
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The number of energy levels of an atom is the
period number it is in. (EX – He and H are in
the first period, so these elements have only one
energy level.
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What does the atomic number tell us?
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It tells us the number of protons and electrons the
atom has.
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What is the atomic mass?
The atomic mass is the average mass of the element’s
isotopes.
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What can the atomic mass tell us about the number of
neutrons in the nucleus?
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The number of neutrons can be determined by
subtracting the atomic number of the atomic mass
number.
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What is an isotope?
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Atoms of the same element with different
numbers of neutrons.
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What is an element made up of?
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One kind of atom
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How many electrons can be in the first
energy level?
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Two
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How many electrons can be in the second
energy level?
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Eight
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What is an ion?
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An atom that has either gained or lost an
electron.
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If an atom gains an electron, does that atom
become positive or negative?
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Negative.
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Draw the atom for the element potassium.
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Helium has an atomic number of 2 and its
atomic mass is 4.003. How many protons,
neutrons and electrons does helium have?
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2 of each
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Fluorine has an atomic number of 9 and an
atomic mass of 18.998. How many protons,
neutrons, and electrons does fluorine have?
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Protons = 9, Neutrons = 10, Electrons = 9
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How many energy levels does the element
Francium have and how many electrons does its
outer orbit have?
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7 energy levels and one electron
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Draw the atom for the element Sulfur?
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Carbon 14 has a half life of 5,730 years. How
many years have gone by after Carbon 14 has
decayed by 2 half lives?
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5,730 x 2 = 11,460
Final Jeopardy
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An isotope has a half life of 15 years. How
many years have gone by when only 1/8 of the
original sample is remaining?
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45 years