Multiple Choice
Which types of atoms typically form anions, and where are these atoms generally located on the periodic table?
2
views
2. Atoms & Elements
Ions
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is an example of an ion?
A
CO_2
B
O_2
C
H_2O
D
Na^+
Verified step by step guidance1
Understand what an ion is: an ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.
Examine each option to determine if it carries a charge: CO_2 (carbon dioxide) is a neutral molecule with no net charge.
O_2 (oxygen gas) is also a neutral molecule composed of two oxygen atoms sharing electrons equally, so it has no charge.
H_2O (water) is a neutral molecule with no net charge, composed of hydrogen and oxygen atoms bonded covalently.
Na^+ (sodium ion) has lost one electron, giving it a positive charge, which makes it an example of an ion.
Related Videos
Related Practice
