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science chapter 4-5 continued
continued
31
Biology
8th Grade
10/27/2011

Additional Biology Flashcards

 


 

Cards

Term

Protons

 

Definition

Size:1 AMU

Charge: +1

Located:Nucleus

Purp:Add positive charge and determine element

Term

Neutrons

 

Definition

Size 1 AMU

Charge None

Location Nucleus

Pupose Add mass stable the element

 

Term

Electrons

 

Definition

Size 1/2000 or 1/840 AMU

Charge -1

Location Swarms around the Nucleus in energy levels

Purpose Do all chemistry and tranfer or sharing

Term

Moles Value

 

Definition
6.022x10 to the 23rd
Term

Moles Inventor

 

Definition
Avagadro
Term
Mole Units
Definition

g/mol

Same as AMU

Term
Isotopes
Definition

Same number of protons but a diff number of neutrons realitive to other atoms of the same element

 

Term
Radioisotopes
Definition
Unstable isotopes
Term

Unified atomic mass unit

 

Definition
1/12 of the mass of a carbon 12 atom
Term
Molar mass
Definition
 The mass in grams of 1 mole
Term
Periodic Law
Definition
Properties of elements change by atomic law 
Term
Ions
Definition
when and atom or molocule loses or gains an electron to get a positive or negitive charge
Term
Ionization
Definition
Gain or lose electrons so that they have a ful outer circle
Term
Cations 
Definition
forms a positive ion
Term
Anion
Definition
Negitive ion
Term
Flouride Ions
Definition
1- charge
Term
Alkali Metal Group Reactivity
Definition
High React to water
Term
Alkali metal element
Definition

Group 1

Makes knifes out of Sodium

Term
Alkaline Earth Metal Reactive
Definition

Dencer and Stronger

Not as Reactive

Term
Alkaline-Earth
Definition

Group 2

Barium Makes Xrays

Term
Transition Metal Reactivity
Definition

Lose electrons for positive ions

Not as reactive

Term
Transition Metal sections 
Definition

Middle section

gold Made into jewlry

Term
Halogen Group Reactivity
Definition

Most reactive nonmetal

gain electron negitive charge

Term
Halogen Group Element
Definition

Chlorine keeps the pool clean

Group 17

Term
Noble Gas Reactivity
Definition

Not reactive or inert

Do not gain or lose electrons 

Term
Noble Gas Element examp
Definition

Group 18

Argon used for lazer eye sergury

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