Question

question 26 (1 point)
the energy of light increases with increasing frequency
true
false
question 27 (1 point)
the bohr model of the atom can explain the atomic emission spectra for almost all of the elements
true
false
question 28 (1 point)
we need only four subshells to describe all of the elements on the periodic table
true
false

Explanation:

• For Question 26: The energy of light is given by the formula $E = h

u$, where $h$ is Planck's constant and $
u$ is frequency. So energy increases with frequency.

• For Question 27: The Bohr model can only accurately explain the atomic - emission spectra of hydrogen - like atoms (atoms with one electron). It fails for multi - electron atoms.
• For Question 28: The four subshells are s, p, d, and f. These are sufficient to describe the electron configurations of all elements in the periodic table.

Answer:

Question 26: True
Question 27: False
Question 28: True