Chem Unit 5

 

How does the size of the s orbital change as the energy of the principle quantum number increases?

• The size of the s orbital increases

• The size of the s orbital stays the same

• The size of the s orbital decreases

Which two elements contain the same number of valence electrons?

• Al and Si

• Al and Zn

• Al and B

• Al and Ge

Which element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁵?

• S

• Mn

• Cr

• Ti

How many unpaired electrons are in the orbital diagram for Cobalt?

• 2

• 7

• 3

• 5

In the third  principal energy level, which sublevel contains electrons with the greatest energy?

• 3s

• 3p

• 3d

• 3f

How many electrons are in a sodium atom’s outermost energy level?

• 1

• 10

• 11

• 12

Which is the correct electron configuration for the element molybdenum (Mo)?

• a

• b

• c

• d

 

Which of the following color of visible light has the shortest wavelength and the most energy?

• violet

• green

• red

• blue

Which variable describes the length of one wave in a waveform?

• frequency

• amplitude

• wavelength

• speed

Which of the following forms of electromagnetic radiation has less energy than visible light?

• Ultraviolet Radiation

• X-Rays

• Infrared Radiation

• Gamma Rays