Chemistry: (6) Nuclear Chemistry and Electron Configuration

when was radioactivity discovered?

1896 by Marie Curie
What is the difference between a nuclear and chemical reaction?
- nuclear: involves nuclei
- chemical: involves electrons
what makes something radioactive?

an unbalance of protons and neutrons
What is transmustation?

when the nuclues of a radiactive atom decays, it changes into the nucleus of a different atom
what is a half-life?

time it takes for one half of the sample of radioactive atom to decay
What is nuclear fisson? What is it used for?

nuclei are hit with neutrons and break down. used for bombs and to generate electricity.
What is nuclear fusion? What is it used for?

nuclei combine. Cannot be used becasue it happens at very high temps
What does the Pauli Exclusion Principle say?

orbital describes max of 2 electrons and they must have opposite sign
What does the arrangement of electrons determine?

element's properties
What is an orbital?

region of space where there is a high probability of finding an electron

Author

alipeace11

58633

Card Set

Chemistry: (6) Nuclear Chemistry and Electron Configuration

Description

Chamistry last note sheet

Updated

2011-01-25T17:57:31Z

Show Answers