Exam 5: Periodicity and the Electronic Structure of Atoms

What is the de Broglie wavelength of a 300.g object moving at a velocity of 25.0 m/s (about 100 mph)?

The algebraic signs (+ and -)sometimes written within the lobes of orbitals are analogous to different ________ of a wave.

For a particular orbital,as one goes away from the nucleus along the z-axis,the probability density decreases to zero,then increases,and finally decreases without increasing a second time.This is consistent with a

Two electromagnetic waves are represented below. -Wave (b)has the

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?

Which orbitals do not have a node at the nucleus?

Which of the following elements would you predict to have an anomalous electron configuration?

Rank the following elements in order of increasing effective nuclear charge: Na,Mg,Cl,and S.

Which of the following elements will have unpaired electrons in the ground state? Ca,Li,C,F

Which has the highest Z_eff for its valence electrons?

-Which element,indicated by letter on the periodic table above,has the ground-state electron configuration [Ar]4s² 3d²?

How many electrons can a single orbital hold?

An orbital with n = 5 and l = 2 is a ________ orbital.

Which period of elements,indicated by letter on the periodic table,has electrons whose highest principal quantum number n is 5?

Which of the following have their valence electrons in the same shell?

Molybdenum has an anomalous electron configuration.Write the electron configuration of Mo using shorthand notation.

Of the following,which atom has the largest atomic radius?

Using shorthand notation,the electron configuration of Ni is ________.

According to the Balmer-Rydberg equation,transitions from n = 5 to m = 2 result in a photons of light that give rise to a spectral line with what color?

How many unpaired electrons are in an atom of Mt in its ground state?