University:
High School
Course:
High School Chemistry
Academic year:

2023
Views:

16

Pages:

1
Author:

Rose G

ATOMIC STRUCTURE Strucove o an . Akom •Radius of 1.10 Proton poslove Newanon Suteral Electron negative Elecorons are arranged as diferent distances away pan the nucleus in energy levees, or sheus Absorbing electromagnetic radiation moves eucorns to a nigher shell ishen an elecorn moves to a lower sheu, electromagneac racibusion à releasing Isotopes •Promic number-number of probons in an element •Mass number rumosur of protons and neutrons He •Pin acom will always have one same number of proess 2 •Isotope -an avcom wien a diferent number of isotopes to cre ussiai atom & orat element. For example C and C •Charge of one iscexpe is not ayecked because neutrons have a neutral charge Plum Pudding Model •Beams were braight to be tiny, inclinablespheres. •J.J. Thompson discovered one electron in 1892 •Plum Pudcling Mode-depicts one atom as a bau of positive charge with elections embedded within it Rubrunord and Marsden Experiment 16. 1905, Ruchernard and Marsden bombardis bi gous pou union alpha particies Most passed scraigne onrough suggesting atome mainly empty spacк Some were repected straigne back or repeша о bue (positive) nucleus mux have the same charge as an alpha parice and must be much heavier Nuclear Matel drawn. Niels Bone suggested the electrons obicar specific dimanas In 1937, James Chatweck discovered the neweron.