Chemistry test 3

First letter uppercase, second (if any) lower case.

Fist letter of current name, letters that make you say the word of the current name, and from the original name.

Different language discriptive words, where element was discovered, named after scientist who discovered it. 

• Proton- (+) in nucleus. located by atomic # (smaller number)
• Neutron- (neutral) In nucleus. Located by mass # - atomic #
• Electron- (-) energy levels outside nucleus. Find by atomic # because in a neutral atom protons and electrons are equal. 

• Atomic Mass - Protons and Neutrons
• Atomic Number- Protons

• A=Mass Number
• X= element symbol
• Z=Atomic #

Atom of same type that has same number of protons but different number of neutrons. (change in neutrons) To identify look at mass # and compare to table mass #. 

Group 1. Without H. 

Group 2

Group 3-12

Group 17

group 18

Group 51-71 and 57 and 89

group 89-103

staircase. Metals and non-metals

14. 32. 33. 51. 52. 84

tripple 7+1

to left 

to right

(+1)(+2)(whatever)(+3)(+-4)(-3)(-2)(-1)(0)

shinny, malable, ductile

compounds that are formed by gaining or losing electrons

• non and real metal
• conduct electricity
• charge of 0