Consider the hydrogen atom, singly ionized helium atom, and the doubly ionized lithium atom. Arrange these atoms from highest energy ground state to lowest energy ground state
a. H, He+, Li++
b. Li++, He+, H
c. H, Li++, He+
d. Since each of these atoms has only one electron, they all have the same energy ground state.
a
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Conversion of Units: The following conversion equivalents are given: 1.0 kg = 1000 g 1.0 l = 1000 cm3 1.0 l = 0.0353 ft3The density of a certain liquid is 0.83 g/cm3. The density of this liquid, expressed in kg/ft3, is closest to
A. 24 kg/ft3. B. 19 kg/ft3. C. 21 kg/ft3. D. 26 kg/ft3. E. 28 kg/ft3.
Radiation Activity: A certain substance has a half-life of 5.0 hours. How many nuclei of the substance are required to give an initial activity of 6.0 ?Ci? (1 Ci = 3.7 × 1010 Bq)
A. 5.8 × 109 nuclei B. 8.5 × 108 nuclei C. 6.3 × 108 nuclei D. 3.2 × 109 nuclei E. 2.4 × 109 nuclei
When white light illuminates a green leaf, ________________ are the two colors of light that are mainly absorbed.
a. Blue and Yellow b. Green and Yellow c. Green and Red d. Red and Blue
Jennifer is inside her windowless space station laboratory and finds herself increasingly pulled to the floor. What experiment can she perform inside the lab to decide if she is feeling the effect of an acceleration or an effect of gravity?
What will be an ideal response?