October 1415 warm ups

1415 Keefe

Warm Up 10.1

• Name the group(s) with mostly radioactive elements

• Clear everything off your desk and have a calculator, pen/pencil ONLY left out: ready to quiz?!?

We will burn things

Warm up 10.2

• What is the charge on the following ions?– Zinc– Silver– Cadmium– Boron– Calcium

Warm up 10.3

• Give the shapes of the first three orbitals.

Warm up 10.6

• Turn in the 2 thangeties we worked on Friday and GET OUT YER NOTES

• Which rule, if any, is violated by this orbital diagram:

• Which rule, if any, is violated by the following orbital diagram:

Warm up 10.7

• GET READY TO DO YO LAB! Get out the HW• Which element is represented by the

following orbital diagram?

• Which element is represented by the following orbital diagram?

Warm up 10.8

• Light with a frequency of 7.26 x 1014 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light?

• When an electron beam strikes a block of copper, x-rays of frequency 1.07 x 1019 Hz are emitted. What is the wavelength of these x-rays?

• Formula: λν = c

Warm up 10.8 Solution:

• λν = c ∴ λ= c/ν

λ= _3.00 x 108 m/s

7.26 x 1014 Hz

λ= 4.13 x 10-7 m

Warm up 10.9

• The radio station KUSC (in Southern California) broadcasts at a frequency of 91.5 MHz. Calculate its wavelength in meters.

– Convert MHz to s¯1

– Use λν = c

Warm up 10.9 Solution

• Convert 91.5 MHz to Hz:

91.5 MHz x 1000000 Hz 1 MHz

= 9.15 x 107Hz

Warm up 10.9 Solution

• λν = c ∴ λ= c/ν• λ = 3.00 x 108 m/s 9.15 x 107Hz

λ = 3.28 m

Warm up 10.10

• Turn in your warm ups and spectra labs and get ready to do the lab!

• GAME FACES- WE HAVE 45 MINUTES TO FINISH!!

Warm up 10.13• Arrange the following elements from longest

to shortest wavelength based on the flame test images below:

October 14

• TEST DAY! • Everything except a calculator, something to

drink, and pen/pencil goes on the floor at the back of the room.

October 15

• Name the seven diatomic elements (HINT: BrINClHOF)

• SHOWING YOUR WORK, convert 4.31 cm to inches where 1 cm=0.394 inches

Warm up 10.16

• Which is more electronegative in each pair?– Ca or Ga– Mg or Ra– F or I– B or Tl– At or Br

Warm up 10.17

• Tell whether the following will increase in size or decrease in size as ions:– Yttrium– Magnesium– Copper– Sulfur– Bromine– Neon

Warm up 10.20

What are the names for the phase changes represented by the numbers 1, 2 , 3 and 4 in the diagram above?