Calculate the energy of an electron in the n = 3 state of a He+ ion.

What is the energy of photon that causes a hydrogen atom to undergo a transition from n-1→ n=2? State your answer in electronvolts (eV) (without units) to three significant figures. Note: 1 eV= 1.602 x 10-19 J.

Determine the energy change associated with the transition from n = 7 to n = 2 in the hydrogen atom.

What is the wavelength of light (in nm) emitted when an electron transitions from n = 3 to n = 2 in a hydrogen atom? Submit an answer to three signficant figures.

Determine the quantum number n of K+. 4 7 -1/2 O O O O

Electron affinity, EA, is the energy required to add an electron to a neutral gaseous atom and is related to an element's position on the periodic table. Electron affinities can be positive, negative, or zero, as shown in the table. Element Electron affinity(kJ/mol) N (nitrogen) >0 Br (bromine) −325 Sr (strontium) −5   Rank the following elements by electron affinity, from most positive to most negative EA value. Rank from most positive to most negative.  If any elements are equivalent, please note that.     Iodine Rubidium Krypton Bismuth Oxygen

calculate the energy change when an electron in the hydrogen atom transitions from n=3 to n=1.

Give the set of four quantum numbers that could represent the electron lost to form the Rb ION from the Rb atom. n = 6,1 = 0, m₁ = 0, mç = n = 4,1 = 1, m₁ = 1, ms : = On = 4,1 = 1, m₁ = 0, mç ² == 13 2 1 n = 5,1 = 1, m₁ = 0, ms = + O n = 5,1 = 0, m₁ = 0, ms 1 2 = + 1

An ion with a +1 charge and ground-state electron configuration [Ar]3d5 An ion with a +1 charge and excited-state electron configuration [Ar]3d5