Chapter 4 - Moving Electrons
What is negative and gains electrons?
Anion
Write the chemical formula for barium phosphate.
Ba3(PO4)2
Write the chemical formula for calcium bromide.
CaBr2
Write the chemical formula for calcium chloride.
CaCl2
What is positive and losses electrons?
Cation
Name Fe2(SO4)3.
Iron (III) Sulfate
Which noble gas does sulfide mimic and how many electrons does it gain?
It mimics argon and it gains two electrons.
Which noble gas does calcium mimic and how many electrons does it lose?
It mimics argon and it loses two electrons.
Which noble gas does rubidium mimic and how many electrons does it lose?
It mimics krypton and it loses one electron.
Write the chemical formula for sodium sulfate.
NaSO2
How many valence electrons does Scandium have?
Scandium has 3 valence electrons.
How many valence electrons does Zinc have?
Zinc has 2 valence electrons.
Name NH4Cl.
ammonium chloride
Name CaO.
calcium oxide
Name MgSO4.
magnesium sulfate
