Sodium Ion Properties and Behavior

The video tutorial explains the differences between a sodium atom and a sodium ion. It begins by introducing sodium as a neutral element with 11 protons and 11 electrons. The formation of a sodium ion is described as the loss of one electron, resulting in a positive charge and a more stable configuration similar to a noble gas. The tutorial highlights the reactivity of sodium due to its single valence electron and contrasts it with the stability of the sodium ion. Additionally, it discusses the size difference, noting that the sodium ion is smaller due to the loss of an energy level and the increased pull of the nucleus on the remaining electrons.

What is the charge of a sodium ion (Na+)?

• No charge

• Negative

• Positive

• Neutral

How many protons does a neutral sodium atom have?

• 12

• 13

• 11

• 10

What is the atomic number of sodium?

• 13

• 12

• 11

• 10

What happens to the electron count when sodium becomes a sodium ion?

• It remains the same

• It gains two electrons

• It loses an electron

• It gains an electron

How many electrons does a sodium ion have?

• 11

• 9

• 10

• 12

Why is the sodium ion more stable than a neutral sodium atom?

• It has more protons

• It has a full outer shell like a noble gas

• It has more electrons

• It has fewer protons

What makes sodium reactive?

• It has more protons than electrons

• It has a full outer shell

• It has one valence electron

• It has no valence electrons

What is the main reason sodium ions are less reactive?

• They have a full outer electron shell

• They have fewer electrons

• They have more electrons

• They have more protons

How does the size of a sodium ion compare to a neutral sodium atom?

• The sodium ion is larger

• The sodium ion is twice as large

• The sodium ion is smaller

• They are the same size

What causes the sodium ion to be smaller than the neutral sodium atom?

• Increase in electron count

• Decrease in proton count

• Loss of an energy level

• Gain of an energy level