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Chapter 2
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7
Microbiology
Undergraduate 2
02/19/2014
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Term

Orbitals or Shells

 

Inert element

 

Element

 

92

 

Total number of elements

 Definition

Path of electorns

 

Element whose atoms have filled outer shell with electrons

 

Pure substance, consisting of single type of atom

 

Number of naturally occuring elements

 

More than 110 total elements
Term

Protons

 

Octet Rule of Eight

 

Isotopes

 

Ions

 

 

 

 

 Definition

The number of electrons are equal to ?

 

Rule of maximum number of electons

 

Same element, same Atomic Number, Different Atomic weight

 

Atom that has lost or gained an electron - a charged atom
Term
Neutrons
 Definition
Varies in numbers in Atom
Term
Atomic number
 Definition
Number of protns in nucleus
Term
Atomic Mass
 Definition
Number of Protons and Neutrons
Term

Proton

 

Electron

 

Neutron

 

Atom

 

Neutron

 Definition

Positive atom

 

Negative atom

 

Neutral atom

 

Smallest part of element

 

Floats around nucleus of atom
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