Give the formula of a negative ion that would have the same number of electrons as each of the following positive ions. $\mathrm{Rb}^{+}$

Which of the following ions have noble gas electron configurations? $\mathrm{Ba}^{2+}, \mathrm{Pt}^{2+}, \mathrm{Mn}^{2+}$

Which of the following ions have noble gas electron configurations? $\mathrm{Pu}^{4+}, \mathrm{Ce}^{4+}, \mathrm{Ti}^{4+}$

Which of the following ions have noble gas electron configurations? $\mathrm{Tl}^{+}, \mathrm{Te}^{2-}, \mathrm{Cr}^{3+}$

Given the displacement vectors

$$\overrightarrow{\mathbf{A}}=(3 \hat{\mathbf{i}}-4 \hat{\mathbf{j}}+4 \hat{\mathbf{k}}) \mathrm{m}$$

and

$$\overrightarrow{\mathbf{B}}=(2 \hat{\mathbf{i}}+3 \hat{\mathbf{j}}-7 \hat{\mathbf{k}}) \mathbf{m},$$

find magnitudes of the following vectors and express each in terms of its rectangular components.

$$\text{(a)} \ \overrightarrow{\mathbf{C}}=\overrightarrow{\mathbf{A}}+\overrightarrow{\mathbf{B}}$$

$$\text{(b)} \ \overrightarrow{\mathbf{D}}=2 \overrightarrow{\mathbf{A}}-\overrightarrow{\mathbf{B}}$$

Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. Rb and Cl

Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. Ba and S

Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. Ga and O

Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. Li and N

A beam of white light enters a transparent material. Wavelengths for which the index of refraction is n are refracted at angle $\theta_{2}$. Wavelengths for which the index of refraction is $n+\delta n$, where $\delta n \ll n$, are refracted at angle $\theta_{2}+\delta \theta$. a. Show that the angular separation of the two wavelengths, in radians, is $\delta \theta=-(\delta n / n) \tan \theta_{2}$. b. A beam of white light is incident on a piece of glass at $30.0^{\circ}$. Deep violet light is refracted $0.28^{\circ}$ more than deep red light. The index of refraction for deep red light is known to be 1.552. What is the index of refraction for deep violet light?

Using method F above, find the first few terms of the Taylor series for the following functions about the given points. $f(x)=\sin x, \ a=\pi / 2$

Write electron configurations for the most stable ion formed by each of the elements Al, Ba, Se, and I (when in stable ionic compounds).

Write electron configurations for the most stable ion formed by each of the elements Rb, Ba, Se, and I (when in stable ionic compounds).

Predict the type of bond (ionic, covalent, or polar covalent) one would expect to form between the following pairs of elements. C and F