Ions and Atomic Charges

The video tutorial explains how ions are formed from neutral atoms by gaining or losing electrons. It discusses the role of protons and electrons in determining an atom's charge and highlights trends in electron gain or loss across the periodic table. Examples of lithium and fluorine are used to illustrate the formation of positive and negative ions, respectively. The tutorial concludes by summarizing the process of ion formation and the resulting charges.

What is the net charge of an atom when the number of protons equals the number of electrons?

• Variable

• Neutral

• Negative

• Positive

What happens to an atom when it gains electrons?

• It becomes a noble gas

• It remains neutral

• It becomes negatively charged

• It becomes positively charged

Which group of elements on the periodic table typically loses one electron to form ions?

• Noble gases

• Transition metals

• Group 2

• Group 1

What charge do non-metals typically have when they form ions?

• Variable

• Positive

• Negative

• Neutral

What happens to lithium when it loses an electron?

• It becomes a positive ion

• It becomes a negative ion

• It remains neutral

• It becomes a noble gas

How many protons does fluorine have?

• 7

• 8

• 9

• 10

What is the result when fluorine gains an electron?

• It remains neutral

• It becomes a negative ion

• It becomes a positive ion

• It becomes a noble gas

What is the charge of an ion if it has more electrons than protons?

• Variable

• Positive

• Negative

• Neutral

What is the charge of an ion if it loses electrons?

• Variable

• Neutral

• Negative

• Positive

What is the main difference between atoms and ions?

• Atoms and ions are always neutral

• Atoms and ions both have net charges

• Ions have a net charge, atoms do not

• Atoms have a net charge, ions do not