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CH 6 notes
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13
Science
8th Grade
02/05/2013

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Cards

Term
What is at the center of every atom that contains protons and neutrons?
Definition
nucleus
Term
The rest of the atom is empty except for what?
Definition
the atom's electrons
Term
What travels in an area of space around the nucleus called the electron cloud?
Definition
atom's electrons
Term
How many electrons are allowed on the 1st electron configuration?
Definition
2
Term
How many electrons are allowed on the 2nd electron configuration?
Definition
8
Term
How many electrons are allowed on the 3rd electron configurations?
Definition
18
Term
How many electrons are allowed on the 4th electron configuration?
Definition
32
Term
Atoms with what are stable?
Definition
complete outer energy level
Term
What are the elements in group 18 known as?
Definition
noble gases
Term
What are the elements in Group 17 called?
Definition
halogens
Term
What are Alkali metals?
Definition
each have one outer energy level electron (group 1)
Term
What is the symbol for the element surrounded by as many dots as there are electrons in it's outer energy level?
Definition
electron dot diagram
Term
What is the force that holds two atoms together?
Definition
a chemical bond
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