Front

What is an ion?

Back

A Charged Atom

Front

Which particles change the charge in atoms when ions are formed?

Back

Electrons

Front

Why are ions formed?

Back

Because atoms want a full valence shell with 8 valence electrons.

Front

Group 17 always has ions with a charge (oxidation number) of _______ because these elements have to gain 1 electron to have a full valence shell with 8 electrons.

Back

-1

Front

An atom becomes _________ when it gains electrons.

Back

Negative

Front

What is a cation?

Back

A positively charged ion formed when an atom loses electrons.

Front

What is an anion?

Back

A negatively charged ion formed when an atom gains electrons.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What is the charge of a sodium ion (Na+) after it loses one electron?

Back

+1

Front

What is the charge of a chloride ion (Cl-) after it gains one electron?

Back

-1