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47 Cards in this Set
- Front
- Back
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The ________ is the center of an atom |
Nucleus |
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The nucleus is made of __________ and ____________. |
Protons and Neutrons |
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The negatively charged ____________ orbit the nucleus. |
Electrons |
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____________ _____________ are the electrons in the outermost orbit (farthest from the nucleus) |
Valence Electrons |
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The letter(s) that represents the element is called the ______________ _____________. |
Element Symbol |
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The lowest of the two numbers that describes how many protons an atom has is called the ___________ ___________. |
Atomic Number |
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What is the number that describes how many particles are in the nucleus (protons and neutrons) |
Atomic Mass |
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The periodic table is arranged according to what? |
It is arranged according to the number of protons in an atom. |
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What is an isotope? |
An atom that has the same number of protons but different number of neutrons. |
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Give an example of an isotope. |
Carbon-12 has two isotopes, one being Carbon-13 and another being Carbon-14 |
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True or False: Isotopes can be stable or radioactive. |
True |
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A neutral atom has the same number of what? |
Protons and electrons |
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In the periodic table of elements, elements in the same row are in the same __________. |
Period |
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Elements in the same column are in the same _____________. |
Group |
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When elements are in the same period, it means they have similar _____________ _____________ such as how well they bend or conduct electricity. |
Physical Properties |
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When elements are in the same group it means they _________ with other elements in the same way. |
React |
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What are the three types of elements? |
Metals, Metalloids, and Nonmetals |
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Elements on the ____ of the zig zag line are metals |
Left |
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Elements on the ______ __________ of the zig zag line are non metals. |
Far right |
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List the 4 properties of metals: |
* Luster - shiny * Malleable - able to be molded * Conductivity - transfer heat and electricity * Ductile - can be pulled into wire |
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List the three properties of Nonmetals: |
* Dull - not shiny * Nonconductive - does not transfer heat and electricity well * Brittle - break apart easily |
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List the properties of Metalloids: |
Metalloids have properties of both metals and nonmetals |
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What family is this? |
Hydrogen Family |
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What Family is this? Group Number? |
Alkali Metals 1 |
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What Family is this? Group Number? |
Alkaline Earth Metals 2 |
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What Family is this? Group Number? |
Transition Metals 3-12 |
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What Family is this? |
Rare Earth Metals |
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What Family is this? |
Boron Family (not essential) |
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What Family is this? |
Carbon Family |
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What Family is this? |
Nitrogen Family |
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What Family is this? |
Oxygen Family or Chalogens |
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What Family is this? Group Number? |
Halogens 17 |
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What Family is this? Group Number? |
Noble/Inert Gases 18 |
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Define Radioactive Elements. |
Elements that have a nucleus that will change over time. |
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Define Radioactive Decay. |
The changing of the nucleus over time. |
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Define a Half-Life. |
The amount of time it takes for half of the element's atoms to decay. |
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Name the three types of Radioactive Decay: |
* Alpha Decay * Beta Decay * Gamma Decay |
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Describe how the protons and neutrons change in Alpha Decay. |
-2 Protons and -2 Neutrons |
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Describe how the protons and neutrons change in Beta Decay. |
+1 Proton and -1 Neutron |
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Describe how the protons and neutrons change in Gamma Decay. |
They don't change. |
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True of False: Alpha and Beta Decay will change the element type because the number of protons changes. |
True |
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Put the three types of decay in order from weakest to strongest: |
1. Alpha 2. Beta 3. Gamma |
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Give 2 characteristics for Alkali Metals: |
* React violently with water * Often bond with group 17 nonmetals to form salts, metals, silver, soft metals |
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Give 3 characteristics for Alkaline Earth Metals: |
* Metals * White in color * Also react with group 17 nonmetals |
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Give 2 characteristics for Transition Metals: |
* Typical metals * Hard & Strong |
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Give 2 characteristics for Halogens: |
* Mostly gases or liquid * Very reactive |
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Give 3 characteristics for Noble Gases: |
* Nonreactive * Stable * All gases |
