Rubidium Electrons and Protons

This video tutorial explains how to determine the number of protons and electrons in rubidium (Rb) and its ion (Rb+). It highlights that the atomic number of rubidium is 37, which equals the number of protons. For neutral rubidium, the number of electrons is also 37. However, for the rubidium ion (Rb+), one electron is lost, resulting in 36 electrons. The video also provides a link for further information on finding the number of neutrons in rubidium isotopes.

What is the main focus of the video?

• Exploring the chemical reactions of rubidium.

• Determining the number of protons and electrons in rubidium ions and neutral rubidium.

• Calculating the atomic mass of rubidium.

• Finding the number of neutrons in rubidium.

What does the atomic number of rubidium represent?

• The number of neutrons in rubidium.

• The number of electrons in rubidium.

• The number of protons in rubidium.

• The atomic mass of rubidium.

How many protons does rubidium have?

• 36

• 38

• 37

• 39

What is the difference in the number of electrons between neutral rubidium and Rb+?

• Rb+ has two more electrons than neutral rubidium.

• Both have the same number of electrons.

• Neutral rubidium has one less electron than Rb+.

• Neutral rubidium has one more electron than Rb+.

How many electrons does a neutral rubidium atom have?

• 38

• 37

• 36

• 35

What happens to the charge of rubidium when it loses an electron?

• It remains neutral.

• It becomes negatively charged.

• It becomes positively charged.

• It becomes doubly positive.

How many electrons does Rb+ have?

• 37

• 36

• 38

• 35

Where can you find more information about the number of neutrons in rubidium isotopes?

• In a chemistry textbook.

• In the video description.

• In the periodic table.

• In the video itself.