2. Atoms & Elements

How many electrons does the Al^{3+} ion possess?

If an atom has a charge of +1, which of the following best describes what has happened to the atom?

Which type of element is most likely to form an anion?

Which of the following elements is commonly used to dope silicon to create an n-type semiconductor?

Which of the following best describes what an ion could be?

Which of the following ions represents iodine with a charge of -1?

Which one of the following compounds contains an ion with a 3+ charge?

Which of the following correctly describes the net charges of a cation and an anion?

Which of the following elements would most likely form an anion during ion formation?

How many total electrons are present in a Fe^{2+} ion?

What is the charge of chloride ions (Cl^-) when present in a salt compound?

How many protons (p) and electrons (e) are found in a Se^{2-} ion?

Why do anions form?

An ion has a net charge of 3+. If this ion has 8 protons, how many electrons does it have?

If a droplet has three extra electrons, what is the net charge of the droplet?