ATOMIC CONCEPT OCTOBER 2, 2015. QUIZ 4 – 10/02/2015 Clear your desk PENCIL only 10 minutes...

ATOMIC CONCEPTOCTOBER 2, 2015

QUIZ 4 – 10/02/2015Clear your deskPENCIL only10 minutesIndividual work and you are silentIf you finish early, silently review

your workNOTE: make sure to complete the

header

NOTEBOOK CHECKNOTEBOOK CHECK 2 TODAYPUT IN GREEN BIN AT END OF

CLASS◦REGENT PERIODIC TABLE◦ATOMIC TIMELINE◦DO NOW FOR 9/28◦DO NOW FOR 9/30◦DO NOW 10/1◦COMPLETED QUESTIONS TO CONSIDER

QUIZ 4

AIMHow can bright-line spectrum

be utilized to identify elements in a star?

Three Views Spectrum Demonstratorhttp://

astro.unl.edu/classaction/animations/light/threeviewsspectra.html◦Point the flashlight directly at light

bulb◦Point the flashlight at the gas cloud◦Point the flashlight at the gas cloud

away from the light bulb

SPECTRUMCONTINUOUS SPECTRUMEMISSION SPECTRUMABSORPTION SPECTRUM

BRIGHT-LINE SPECTRUMEMISSION SPECTRUM

WHAT IS IN THE UNKNOWN?

REGENT

HW-01-02Q1: State the total number of

valence electrons in a cadmium atom in the ground state.

Q2Identify all the elements in the

mixture

Q3Explain, in terms of both

electrons and energy, how the bright-line spectrum of an element is produced.

Q4List all elements present in

unknown sample W.

Q5List all elements present in

unknown sample X.

Q6List all elements present in

unknown sample Y.

Q7List all elements present in

unknown sample Z.

Q8 – REAL LIFE APPLICATION

How can bright-line spectrum be utilized to identify elements in a star?

SUPERMOON LUNAR ECLIPSE

SUMMARY TO TODAY LESSON

HOMEWORK REMINDER◦Study for Quiz 3