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Reading the Table
Matter Categorized
Vocabulary
Isotopes, Ions and Other Stuff
100
Also called the planetary model. This atomic model has concentric "rings" or levels where the electrons orbit around the positively charged nucleus.
What is the Bohr atomic model?
100
Scientists use this term to refer to the horizontal rows of the periodic table.
What are periods?
100
Example: Salt & Sugar
What is a homogeneous mixture?
100
A substance that cannot be broken down into simpler substances.
What is an element?
100
C-14 and C-12 are examples
What is an isotope of carbon?
200
In this state all of the electrons can be found in their lowest possible energy level.
What is ground state?
200
Scientists use this term to refer to the vertical columns of the periodic table.
What is a group or family?
200
Example:
What is heterogeneous mixture?
200
A substance made of two or more simpler substances that is bound together but can be broken down into those simpler substances.
What is a compound?
200
An atom has 33 protons, 42 neutrons, and 36 electrons. List the element and identify ion or isotope.
What is a Arsenic and the atom is a negative ion?
300
In this state energy has been added to the atom and the electrons will move to a higher energy level?
What is excited state?
300
Elements in the same ________________ share similar properties. Including the same number of valence electrons.
What is group or family? Recall the same number of valence electrons only holds for the group A elements. It is not necessarily true for the group B elements also called the transition metals.
300
Example: Be as specific as possible
What is a suspension?
300
The smallest particle of matter which has all the same properties or the smallest particle of an element.
What is an atom?
300
Most of the element on the periodic table fall into this category of elements.
What are metals?
400
This is released when an excited electron drops back down to its ground state.
What is light or energy?
400
The outer most energy level of this group is completely filled making them unreactive with other elements?
What are the nobel gases or what are the elements in group 8A?
400
Example: Be as specific as possible.
What is a solution?
400
This type of electron can be found in the highest occupied energy level in the atom.
What is a valence electron?
400
This element is in group 1A because of its valence electrons. But it doesn't share the same metallic properties that all the other elements in this group have.
What is Hydrogen?
500
This is the most accurate and current model. It illustrates the areas where there is the highest probability of finding the electrons.
What is the electron cloud model?
500
This small group of elements seperates the metals and non-metals on the periodic table. Even though these elements share properties with both groups.
What are metalloids?
500
A general category of matter which has a fixed or uniform composition. AND 2 subcategories.
What are pure substances and the subcategories elements and compounds?
500
Represents the total number of neutrons and protons in a particular atom.
What is the mass number?
500
This element is in group 8A but will have a full outer energy leve when it has only 2 valence electrons?
What is Hellium?