Nickel Compounds and Ionic Charges

The video tutorial explains how to write the chemical formula for Nickel(II) Fluoride. It begins by identifying the element symbols for Nickel and Fluorine, then discusses the importance of considering ionic charges. Nickel, a transition metal, has a 2+ charge, while Fluorine, a halogen, has a 1- charge. To balance these charges and form a neutral compound, two Fluorine atoms are needed for each Nickel atom, resulting in the formula NiF2. The tutorial concludes by verifying the formula and ensuring the charges add up to zero.

What is the symbol for nickel in the periodic table?

• Nk

• Nl

• N

• Ni

Which group does fluorine belong to on the periodic table?

• Group 2

• Group 7A

• Group 1

• Group 8

What is the ionic charge of nickel in Nickel(II) Fluoride?

• 1-

• 2+

• 1+

• 2-

How many fluorine atoms are needed to balance the charge of one nickel atom in Nickel(II) Fluoride?

• 1

• 2

• 4

• 3

What is the correct formula for Nickel(II) Fluoride?

• Ni2F

• NiF2

• Ni2F3

• NiF

What is the total charge of the compound Nickel(II) Fluoride?

• 2+

• 1+

• 1-

• 0

What is the purpose of the Roman numeral in Nickel(II) Fluoride?

• Indicates the atomic mass

• Indicates the ionic charge of nickel

• Indicates the number of atoms

• Indicates the group number