Chem

Valence Electrons & Ionic Compounds

100

Which element does not have the same number of valence electrons as the others in its column?

Helium - He

200

Which columns do not have valence electrons in our class?

Columns 3-12

300

What constitutes an ionic bond?

M + NM

400

Ionic compounds form between atoms of _______________ charges.

A. Similar

B. Opposite

B. Opposite

500

1. Ionic compounds have __________ melting and boiling points.

   1. Low

   2. Medium

   3. High

3. High

Lewis Dot Structure

100

What do the dots on the Lewis Dot Structures represent?

Number of Valence Electrons

200

He

He

300

K

K

400

As

As

500

Lv

Lv

Covalent Compounds

100

What constitutes a covalent bond?

NM+NM

200

1. Covalent Compounds have ________ melting and boiling points.

   1. Low 

   2. Medium

   3. High

1. Low

300

1. Which covalent bonds dissolve in other similar covalent bonds?

   1. Polar

   2. Nonpolar 

1. Polar

400

1. Which state of matter are nonpolar covalent compounds at room temperature?

   1. Solid

   2. Liquid

   3. Gas

3. Gas

500

1. Do nonpolar covalent compounds dissolve?

   1. Yes

   2. No

2. No

Other

100

What is the ionization energy of nonmetals?

High

200

What is the ionization energy of metalloids?

Medium

300

What is the ionization energy of metals?

Low

400

What is a semiconductor?

Metalloids are able to conduct electricity at certain times

500

What is ionization energy?

the amount of energy required to remove an electron from an isolated atom or molecule