2. Atoms & Elements

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

Which term is used to describe negatively charged ions?

Which of the following represents a species with 39 protons and 36 electrons?

What is an atom that gains electrons in order to become stable called?

Which of the following processes would produce an anion?

What type of ion is formed when an atom loses electrons?

Which of the following ions is isoelectronic with krypton?

What type of ion is formed when an atom loses an electron?

Which ion would bond with a calcium ion (Ca^{2+}) to form a neutral ionic compound?

Which of the following ions is not isoelectronic with the others?

What is the term for an atom or molecule that has more protons than electrons?

When an atom gains electrons to become a negative ion (anion), how does its size change compared to the neutral atom?

When water ionizes, it produces an ion with a positive charge and an ion with a negative charge. Which pair of ions is formed?

Which one of the following elements will most readily form an ion with a 1- charge in an ionic compound?

What is the most common ionic charge of an aluminum ion?