Atomic Structure and Ion Charges

This video tutorial covers the basics of electrons, ions, and atomic charges, focusing on how atoms can be neutral or charged. It explains the concept of net charge and how atoms can gain or lose electrons to become ions. The video also differentiates between cations and anions and provides practice questions to prepare for the TEAS exam.

What is the charge of a proton?

• Neutral

• Positive

• Variable

• Negative

How many electrons does a neutral carbon atom have?

• 8

• 10

• 4

• 6

What is the net charge of a neutral atom?

• Negative

• Depends on the element

• Positive

• Zero

What happens to an atom when it gains an electron?

• It remains neutral

• It becomes a cation

• It loses a proton

• It becomes an anion

What is a cation?

• A negatively charged ion

• A neutral atom

• An atom with extra neutrons

• A positively charged ion

Which element is likely to form a cation by losing an electron?

• Fluorine

• Chlorine

• Lithium

• Oxygen

What is the charge of a chloride ion?

• +1

• -1

• -2

• +2

How many electrons does a magnesium ion with a +2 charge have?

• 16

• 14

• 12

• 10

What is the charge of an oxide ion?

• +2

• -2

• +1

• -1

What happens to the charge of an atom when it loses electrons?

• It becomes more negative

• It gains neutrons

• It becomes more positive

• It remains the same