Ionic Charge and Electron Configuration

The video tutorial explains two primary methods to determine the ionic charge of calcium (Ca). First, it discusses the trends in ionic charges across the periodic table, highlighting that calcium, located in group two, typically has a 2+ ionic charge. Second, it delves into the electron configuration of calcium, showing how it loses two valence electrons to achieve a stable configuration similar to the noble gas argon, resulting in a 2+ charge. The tutorial concludes by reinforcing these concepts and thanking viewers.

What are the two primary methods to determine the ionic charge of calcium?

• Using the periodic table and atomic mass

• Using atomic mass and atomic number

• Using the periodic table and electron configuration

• Using electron configuration and atomic number

Which group in the periodic table contains elements with a +1 ionic charge?

• Group 3

• Group 4

• Group 1

• Group 2

What is the ionic charge of calcium based on its position in the periodic table?

• +1

• +2

• -1

• -2

How many electrons are in the first energy level of calcium?

• 4

• 1

• 3

• 2

What is the total number of electrons in the second energy level of calcium?

• 8

• 10

• 6

• 12

What happens to calcium's valence electrons when it bonds with other elements?

• It gains two electrons

• It loses two electrons

• It loses one electron

• It gains one electron

What is the resulting ionic charge of calcium after losing its valence electrons?

• -2

• +2

• -1

• +1

Which noble gas does calcium resemble after losing its valence electrons?

• Argon

• Krypton

• Neon

• Xenon

What is the significance of the third energy level in calcium after it loses electrons?

• It becomes empty

• It becomes full with eight electrons

• It loses all electrons

• It gains two electrons

Which method can be used to determine the ionic charge of calcium?

• Only periodic table trends

• Only electron configuration

• Both periodic table trends and electron configuration

• Neither periodic table trends nor electron configuration