Final Exam Review

How many electrons are in Manganese (Mn) ?

• 12
• 25
• 55
• 30

Which two particles make up the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Molecules and Compounds
• Neutrons and Electrons

What is at the center of every atom?

• An electron

• A compound

• A molecule

• A nucleus

The following element key shows how many protons?

• 16
• 15.999
• Oxygen
• 8

How many neutrons are in Tungsten

• 110

• 74

• 183

• 258

Atoms that have a different amount of electrons than protons

• covalent bonds

• isotopes

• ionic bonds

• ions

Atoms with the same number of protons but different number of neutrons.

• covalent bonds

• isotopes

• ionic bonds

• ions

Na ionizes to a charge of _______

• +1

• +2

• -1

• -2

How many total electrons does Mg⁺² (a magnesium ion) have?

• 10
• 12
• 14
• 22

Cations are

• positive
• negative
• on the right side of the periodic table.
• nonmetals