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Electronic Configuration
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What is wrong with the atom in the given diagram?
No electrons in first shell/too many electrons in third shell
How many electrons does this atom have in its valence (outermost) shell?
7
Which atom is this?
Oxygen
Which atom is this?
Sodium
Which type of gases have a full outermost electron shell? ("_ _ _ _ _ gases")
Noble gases
Elements that have 7 valence electrons are part of which group on the periodic table?
Halogens (Group 7)
When the outermost electron level is full, the element is _ _ _ _ _ _?
stable
What are the four letters that represent electron sub-levels?
s; p; d; f
Who is the shell model of electrons named after?
Niels Bohr
What are the electrons in the outermost shell known as? ("_ _ _ _ _ _ _ electrons")
Valence Electrons
How many electrons can the third level hold?
18
How many electrons can the second level hold?
8
How many electrons can the first level hold?
2
What are the orbits (in which electrons sit) around the nucleus called?
Electron shells
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