2. Atoms & Elements

When are anions formed?

Which of the following best describes the charge on a cation?

Which neutral atom is isoelectronic with F^+?

Which of the following compounds consists of ions?

Which of the following best describes an ion?

Which of the following best describes the ion IF4+?

A magnesium ion is _____ than a sodium ion.

An ion has 19 protons and 18 electrons. What is the charge of this ion?

Which process changes a chlorine atom into a negative chloride ion?

Which of the following best describes the difference between a cation and an anion?

Which of the following best describes the charge of a cation?

Which particles in an atom carry an electric charge of -1?

Which type of ion is formed when electrons are lost, and which type is formed when electrons are gained?

Which process is required for magnesium to form the ion Mg^{2+}?

A sodium cation is _____ than a sodium atom.