Chemistry - Atomic Structure Flashcards
Where are the Alkali Metals?
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Alkali Metals (Group 1)
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Where are the Halogens?
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GROUP 17
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Where are the Transition Metals?
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Transition Elements or Transition Metals
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The element Sodium can be found in Group 1 of the Periodic Table.
What is the other name given to this group?
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Alkali Metals
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What are sub-atomic particles?
Subatomic Particles
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What’s the name given to Group 2?
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Alkaline Earth Metals (Group 2)
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What’s the Atomic Number?
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The number of protons in the atom.
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Where could a student find out information on the element Flourine (F)?
In the Periodic Table of Elements
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Where are the Noble Gases?
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GROUP 18
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Can atoms of two different elements have the same number of protons?
No, all elements have a unique number protons in their atoms.
This is the atomic number
How many neutrons has an iron atom?
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30 Neutrons
56 - 26 = 30
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Where are the Alkalne Earth Metals?
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GROUP 2
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O2
chemical formula for oxygen gas
Name an element that has the same number of electrons in its outer shell as Flourine (F)
Chlorine. Bromine
these are the halogens
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Identify the element whose atom is shown in the diagram
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7 protons** + 7 neutrons = 1**4 (atomic weight)
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Name the type of sub-atomic particle that has a positve charge?
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Name the type of sub-atomic particle that has a negative charge?
Electrons are negative
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What is this group of elements called?
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Halogens
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What is this group of elements called?
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Noble Gases
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Name the process which uses electricity to separate water into its elements
Electrolysis
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Compare the mass of protons and electrons
A proton is about 1800 times more massive than an electron
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Mass Number = 9
Atomic Number = 4
Find the number of neutrons
neutrons = mass number - #protons
mass number = #protons + #neutrons
What is this group of elements known as?
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Transition Metals or Transition Elements
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What is the mass number of an atom?
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number of protons + number of neutrons
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Name the part of the atom where the positive charges are located
The Nucleus
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What’s the Mass Number?
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The number of protons and neutrons in an atom
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#protons + #neutrons = mass number