2. Atoms & Elements

Which of the following best describes anions?

Which ions are present in an aqueous solution of NaOH?

In the context of ions and electrochemistry, what does the symbol Ø (an 'O' with a line through it) typically represent?

Which of the following elements is most likely to form a -3 ion?

Chlorine forms a 1- ion known as the chloride ion. How many electrons does a chloride ion have?

When iodine forms its most common ion, represented as I^-, how many protons and electrons does it have?

Why do anions carry a negative charge?

Which of the following ions is isoelectronic with Xe?

What is the charge on a hydroxide ion (OH)?

Which of the following is an ion?

What is the charge of the sulfide ion (S^{2-})?

Which of the following is the most stable monatomic ion formed from iodine?

What is the charge on the silver ion in AgMnO_4?

Which classification of atoms typically form anions?

Which best describes the potassium ion that forms when potassium loses an electron?