Exam 28: Atomic Physics

Imagine that an electron had a spin of 5/2 so that its spin quantum number,m_s,could have the following six values: m_s = +5/2,+3/2,+1/2,-1/2,-3/2,and -5/2.If this were true,the first element with a filled shell would be

If the energy for the ground state level (n = 1)of hydrogen is −13.6 eV,which of the following gives an approximate value for the energy of an electron of the K shell (n = 1)of the element beryllium for which the atomic number = 4?

The ground state configuration for an element is 1s²2s²2p⁶3s²3p¹.What is the atomic number of the element?

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number of the hydrogen atom is 7,there will be how many permitted orbital magnetic quantum numbers?

The Bohr model of the hydrogen atom accounts for which quantum number?

Which of the following demonstrated the relation between the atomic number of a given element and the wavelength of the K-alpha x-ray photon emitted by that element?

The Lyman series of hydrogen corresponds to electron transitions from higher levels to n = 1.What is the longest wavelength in that series? (R = 1.097 × 10⁷ m−¹ and 1 nm = 10−⁹ m)

A muon behaves like an electron except that it has 207 times the mass of the electron.If a muon were bound to a proton,how would the energy levels in the Bohr model compare to those for a bound electron?

If the principal quantum number for hydrogen is 7,which one of the following is not a permitted orbital magnetic quantum number for that atom?

In neon,the 20.80-eV level can undergo lasing action to the 17.43-eV level.What is the energy of the resulting photons?

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.

The ground state electronic configuration for sodium is 1s²2s²2p⁶3s¹.What is the orbital quantum number of the last (3s¹)electron?

The emission of a line from the Balmer series is followed almost immediately by the emission of a line from the Lyman series.This will be true for

The x-rays that occur when a high energy electron beam is incident on a metal target will show what type of spectrum?

The quantum number that can have only two possible values is the

Which of the following conditions must be satisfied for laser action?

The Bohr theory does not predict that

Magnesium has atomic number 12.In its ground state,how many electrons are in its n = 3 shell?

The four visible colors emitted by hydrogen atoms are produced by electrons

When a wire carries high current causing it to glow,it will emit which type of spectrum?