Fluoride Ion and Electron Interactions

This video tutorial explains how to determine the number of protons and electrons in the fluoride ion (F-). It begins by discussing the neutral fluorine atom, where the atomic number equals the number of protons and electrons. The video then compares neutral fluorine with the fluoride ion, highlighting that the difference lies in the number of electrons. For the fluoride ion, an extra electron is added, resulting in a total of 10 electrons. The tutorial concludes by emphasizing the concept of ions gaining or losing electrons to become charged.

What is the charge of the fluoride ion?

• Negative

• Double negative

• Positive

• Neutral

What does the atomic number of an element represent?

• Number of electrons

• Number of ions

• Number of protons

• Number of neutrons

How many protons does neutral fluorine have?

• 10

• 9

• 8

• 7

Why is fluorine neutral on the periodic table?

• It has equal protons and electrons

• It has no electrons

• It has more electrons than protons

• It has more protons than electrons

What is the atomic number of fluorine?

• 7

• 8

• 9

• 10

What is the main difference between neutral fluorine and the fluoride ion?

• Number of neutrons

• Number of electrons

• Atomic mass

• Number of protons

How many electrons does the fluoride ion have?

• 10

• 9

• 8

• 11

How does the extra electron affect the fluoride ion?

• It gives it a positive charge

• It makes it neutral

• It gives it a negative charge

• It has no effect

What happens to an atom when it gains an electron?

• It loses a proton

• It becomes a positive ion

• It remains neutral

• It becomes a negative ion

What is the charge of an atom that loses an electron?

• Negative

• Double positive

• Neutral

• Positive