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33 Cards in this Set
- Front
- Back
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What is an isotope?
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An isotope is an atom of the same element with a different number of Neutrons.
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What is an ion?
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An ion is an atom with a charge. It either has more electrons than protons or more protons than electrons.
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Which tells you how many Energy shells an atom will have, the period number or the family number?
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The period number.
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Which tells you how many valence electrons an atom will have, the period number or the family number.
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The family number.
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What is the maximum number of valence electrons and atom can have?
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8
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How many electrons will the 3rd energy shell hold?
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Up to 18 (unless it is the valence shell and then it will only hold 8)
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Which 3 elements are magnetic?
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Nickel, Cobalt and Iron
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What are valence electrons?
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The electrons in the outermost shell that are involved in sharing or transferring of electrons (bonding).
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What are the elements called that live on the Zig Zag on the Periodic Table and why are they called that?
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Metalloids. They are called that because it means "metal-like" and the metalloids have some properties of metals and some properties of non-metals.
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Name a Metal that is liquid at room temperature.
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Mercury
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What 4 pieces of information are found in each square on the Periodic Table?
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Atomic Number, Chemical Symbol, Element Name, Atomic Mass
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What is an AMU?
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The AMU is the Atomic Mass Unit, which is roughly the mass of a Proton or a Neutron.
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When determining the mass of an atom, which two particles are added together, which is left out and why is it left out?
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The Proton and the Neutron are added together to find the mass of an atom. The electron is left out because its mass is so small (about 1/2000 the size of a proton) it is not counted.
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What is the charge of a Proton?
Where is it found in the atom? What is its mass? |
Positive Charge
It is found inside the nucleus It has a mass of roughly 1 amu |
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What is the charge of a neutron?
Where is it in the atom? What is its mass? |
Charge is neutral (no charge)
It is found in the nucleus It has a mass of roughly 1 amu |
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What is the charge of an electron?
Where is it found in the atom? What is its mass? |
It has a negative charge.
It is found outside the nucleus in the energy shells or levels (or cloud) It has a mass of about 1/1800 amu |
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What is the definition of Atomic Number?
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The atomic number is the number of Protons in an atom.
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What is the largest naturally occuring atom?
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Uranium
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What does "Periodic" mean?
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Periodic means having a repeating pattern.
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What does "malleable" mean?
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Malleable means able to be pounded into sheets - bendable. Ex. silly putty, playdough etc.
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What does "ductile" mean?
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Ductile means able to be pulled out into wires - think of taffy.
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If gold is such a great conductor of electricity and does not react with a lot of things (does not corrode), why don't we use it for our power cords and household wiring?
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It is too expensive.
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What is a fascinating property of Sodium and other members of its family?
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Sodium reacts violently with water.
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Which two elements combine to form Table Salt?
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Sodium (Na) and Chlorine (Cl)
NaCl |
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What is the rule about Chemical Symbols?
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The first letter is always capitolized and if there is a second letter it is always lower cased.
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Who designed the first Periodic Table of the Elements?
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Demetri Medeleev
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Which sets of elements have similar properties, those in the same period or those in the same family.
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Those in the same family
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How many periods does the Periodic Table have?
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7
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Why are the Inert gases called "Inert"?
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Inert means not reacting - Inert gases do not react with other elements.
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Why are the Lanthanides and Actinides at the bottom of the Periodic Table?
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If they were put into their proper rows, the Periodic Table would be too big.
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Name 4 properties of Metals.
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1. shiny
2. good conductors of heat and electricity 3. most are solids at room temperature 4. malleable 5. ductile |
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Why are Inert gases also called Noble gases?
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Like the Nobles of Europe, the Noble gases do not associate with those that are unlike them (all the other elements)
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What are the names of the first two families?
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Alkali Metals, Alkaline Earth Metals
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