Write the charge and complete ground-state electron configuration of the monatomic ion most likely to be formed by each:
(b) $\mathrm{Na}$

Predict:
(a) whether the square-planar complex ion $\left[\mathrm{Cu}(\mathrm{py})_4\right]^{2+}$ is diamagnetic or paramagnetic

Name each polyatomic ion.

(a) $\mathrm{IO}^{-}$

(b) $\mathrm{IO}_2^{-}$

(c) $\mathrm{IO}_3^{-}$

(d) $\mathrm{IO}_4{ }^{-}$

Obtain a. the $K_b$ value for $\mathrm{NO}_2{ }^{-} ;$ b. the $K_a$ value for $\mathrm{C}_5 \mathrm{H}_5 \mathrm{NH}^{+}$(pyridinium ion).

Potassium ions $\left(\mathrm{K}^{+}\right)$have a positive charge. What happens to a potassium atom's electrons when it becomes an ion?

Give the formula of a negative ion that would have the same number of electrons as each of the following positive ions. a. $\mathrm{K}^{+}$ b. $\mathrm{Mg}^{2+}$ c. $\mathrm{Sr}^{2+}$ d. $\mathrm{Cs}^{+}$

Find the hydronium ion $\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$concentration for the substance with the given p H. Wine, 3.4

What does the symbol $\mathrm{Li}^*$ represent? F. a lithium isotope G. a lithium atom H. a lithium ion L. a lithium molecule

Write the formula for each of the following chlorine-containing ions, including the overall charge of the ion. a. chloride c. chlorate b. hypochlorite d. perchlorate

Evaluate each express ion if x=6.

$$2 x \div 6$$

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

In an aqueous solution, which substance yields hydrogen ions as the only positive ion? (1) $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$, (2) $\mathrm{CH}_{3} \mathrm{COOH}$, (3) KH, (4) KOH.

The ground state ionization energy for the one electron ion $X ^ { m +}$ is $4.72 \times 10 ^ { 4 } \text{ kJ}/ \mathrm { mol }.$ Identify X and m.

$(a)$ An oxygen-$16$ ion with a mass of $2.66 \times 10^{-26} \mathrm{~kg}$ travels at $5.0 \times 10^6 \mathrm{~m} / \mathrm{s}$ perpendicular to a $1.20 \mathrm{~T}$ magnetic field, which makes it move in a circular arc with a $0.231 \mathrm{~m}$ radius. What positive charge is on the ion? $(b)$ What is the ratio of this charge to the charge of an electron? $(c)$ Discuss why the ratio found in $(b)$ should be an integer.