How does the electron-cloud model describe electrons? a) The exact position of an electron can be known.
b) An electron can be found at certain distances from the nucleus.
c) An electron has a high probability of being in certain regions.
d) Each electron follows a specific path around the nucleus.

What happens to isotopes that are unstable?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

Which subshell is represented by the actinides family?