Which of the following is NOT true about ions?

Cations are positively charged ions.
Anions are common among nonmetals.
Charges for ions are written as numbers followed by a plus or minus sign.
When a cation forms, more electrons are transferred to it.

Question

Which of the following is NOT true about ions? 

Cations are positively charged ions.
Anions are common among nonmetals.
Charges for ions are written as numbers followed by a plus or minus sign.
When a cation forms, more electrons are transferred to it.

jfraser · Answer

remember that atoms form ions by either gaining or losing electrons, and those electrons are NEGATIVELY charged. What's the only way to form a positive charge by moving electrons around?

jfraser · Answer

can you form a POSITIVE charge by GAINING electrons?