Periodic Table and Ionic Charges

The video tutorial by Jason from ASU's tutoring centers covers predicting ion charges. It begins with an introduction to ions and their formation, focusing on electron shells and valence electrons. The concept of noble gases and their stability due to a full octet is explained. The tutorial then discusses how the periodic table's columns indicate the number of valence electrons and potential ion charges. Strategies for ion formation in different columns are explored, with examples of barium and oxygen. The video concludes with information on additional resources available through ASU.

What are the electrons in the outermost shell of an atom called?

• Nuclear electrons

• Valence electrons

• Bonding electrons

• Core electrons

Why do noble gases tend not to form bonds?

• They have incomplete inner shells.

• They are highly reactive.

• They have no electrons.

• They have a full octet of valence electrons.

What does the number in a periodic table column indicate?

• The number of protons in the nucleus

• The atomic mass of the element

• The number of neutrons in the nucleus

• The number of valence electrons

How do elements in the first column of the periodic table typically achieve a full octet?

• By gaining one electron

• By losing seven electrons

• By gaining seven electrons

• By losing one electron

What charge do elements in the second column of the periodic table typically form?

• Minus two

• Plus one

• Plus two

• Minus one

What is the typical charge for elements in the third column of the periodic table?

• Minus one

• Plus one

• Minus three

• Plus three

Why do elements in the fourth column of the periodic table rarely form ions?

• They have a full octet naturally.

• They are too heavy to form ions.

• They prefer to form covalent bonds.

• They have no valence electrons.

What is the most likely charge for an ion of barium?

• Minus one

• Plus one

• Plus two

• Minus two

Which column in the periodic table is oxygen located, and what charge does it typically form?

• Fifth column, minus three

• Second column, plus two

• Sixth column, minus two

• Fourth column, plus four

How do elements in the fifth column of the periodic table typically achieve a full octet?

• By losing five electrons

• By gaining three electrons

• By gaining five electrons

• By losing three electrons