Chapter 5 #1) Why did Rutherford’s atomic modelneed to be replaced?

Rutherford’s model lookeda bit like a solar system

It didn’t explain such things as why elementsgive off light of specific colors when heated:Example: fireworks, iron

That electrons each containa specific amount of energy as defined by their orbit. The further out the electron orbits,more energy the electronhas. Orbits are fixed distances.

#2) What was the basic new proposalin the Bohr model?

#3) What does the quantum mechanicalmodel determine about electrons in atoms?

That electrons can only orbit in very specificenergy levels, they cannot orbit BETWEEN theselevels.

#4) How do two sublevels of the sameprinciple energy level differ from each-other?

The orbitals are shapeddifferently.Play Chem ASAP from PHschool

S-orbital

P-orbital

#5 How can electrons in an atom move fromone energy level to another?

BohrModel

Bohr Model

#6) The energies of electrons are saidto be quantized. Explain what that means.

Each electroncontains in itsorbital a veryspecific amountor “quantum”of energy. If anelectron gains orloses energy, itmust change its orbital.

#7) How many orbitals are in the following sublevels?a. 3p sublevel

b. 2s sublevel

c. 4p sublevel

d. 3d sublevel

e. 4f sublevel

http://center.acs.org/periodic/tools/PT.html Cool periodic table