2. Atoms & Elements

What is the charge of a sodium ion (Na^+)?

Which of the following is the correct ionic symbol for an ion with 34 protons and 36 electrons?

Which of the following best describes cations?

Aluminum is a Group 3A metal. Which ion does Al typically form?

Which of the following elements does not typically form a monatomic ion?

What is the oxidation state (charge) of chromium in the complex ion [Cr(NH3)3Br3]?

Which ions are formed when CH₃OH (methanol) dissociates in water?

How many electrons does an oxygen atom need to gain in order to achieve a stable, noble gas electron configuration?

Which of the following ions is isoelectronic with the oxide anion O^{2-}?

Which ion is formed when an atom of mercury (Hg) loses two electrons?

What is the charge on a chloride ion (Cl^-)?

Which of the following best describes how positive ions (cations) and negative ions (anions) are formed?

Which ion is formed when an atom of mercury (Hg) loses two electrons?

Which process leads to the formation of a positive ion (cation)?

Which ion is formed when an atom has 26 protons and 24 electrons?