IPC Semester Review Part 3

Positive ions are also known as ___________.

• Cation

• Anion

• Theion

• Boion

Why do atoms form bonds?

• so the number of protons equals the number of electrons

• so the atoms can become unstable

• to fill their outer most energy level and become stable

• so the number of protons equals the number of neutrons

The following footwear is best in the laboratory.

• sandals

• open-toed shoes

• closed-toed shoes

• shoes appropriate for the weather

Silicon has an atomic number of 14 and an atomic mass of 28. How many neutrons does it have?

• 14

• 28

• 2

• 10

What type of bond will form between sodium and chlorine?

• Polar Covalent

• Nonpolar Covalent

• Ionic

• None they are both stable

An ionic bond will form between what type of elements?

• 2 metals

• 2 nonmetals

• 1 metal and 1 nonmetal

• none of the above

Lithium is located in group 1 of the periodic table, which element has similar characteristics to lithium?

• Cesium (Cs)

• Beryllium (Be)

• Neon (Ne)

• Magnesium (Mg)

How many hydrogen atoms are in Ba(OH₃)₂?

• 1

• 3

• 6

• 2

If you do not understand a direction or part of a lab procedure, you should

• figure it out as you do the lab.

• try several methods until something works.

• Ask the instructor before proceeding.

• skip it and go on to the next part

Covalent bonds will form between what type of elements?

• 2 metals

• 2 nonmetals

• 1 metal and 1 nonmetal

• none of the above