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Unformatted text preview: 2. Use the attached period table. What is the atomic number of lithium: _3__ What is the mass number of lithium:_6.94___ Name the group to which lithium belong:___alkali_metals__________ For an atom of Li-7, how many neutrons are present:__4__ How many protons are present:__3__ How many electrons are present:__3__ (6pt) 3. What is the amplitude and wavelength of the following wave? If the wave is traveling at 30 m/s, what is its frequency? (7pt) Amplitude:_____6____cm_ __ Wavelength:____10____cm_ __ Frequency :____300_____hz_ __ 4. True false: (5pt) _F__ oxygen is one of the pnictogens. _T__ Infrared radiation has longer wavelength than ultraviolet radiation. _F__ Green light has longer wavelength than red light. _F__ Millikans experiment determined the charge to mass ratio of an electron. _T__ In Rutherfords experiment, alpha particles were deflected by the nuclei of platinum atoms. PERIODIC TABLE OF THE ELEMENTS...
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