Unit 3 - Chemical Bonding

Last updated about 2 years ago
25 questions
1

Malleability and ductility are characteristics of substances with

1

Which of the following atom's Lewis dot notation shows six valence electrons?

1

How many valence electrons to strontium atoms generally lose?

6

Match the following electronegativities to their respective atoms.

Draggable itemCorresponding Item
Nitrogen
3.0
Aluminum
2.2
Hydrogen
1.5
Lithium
1.0
Helium
N/A
Arsenic
2.1
1

The melting points of ionic compounds are higher than the melting points of molecular compounds because

1

Which of the properties listed below is NOT a property of ionic compounds?

1

The electrons involved in the formation of a chemical bond are called

1

Which of the pairs of elements below will form the LEAST polar bond?

1

Based on the table, which of the following statements is true?

1

Metallic Bonds have all the following characteristics, except

3

Match the element with its correct Lewis Dot Structure for covalent bonding

Draggable itemCorresponding Item
Carbon (C)
4 dots
Boron (B)
3 dots
Fluorine (F)
7 dots
3

Match the number of covalent bonds with the appropriate element

Draggable itemCorresponding Item
1 covalent bond
Hydrogen (H)
2 covalent bonds
Oxygen (O)
3 covalent bonds
Nitrogen (N)
1

What is the defining characteristic of a covalent bond?

1

In a water molecule (H2O), what type of bond is between the Hydrogen and Oxygen atoms?

1

Which of these compounds does NOT form a covalent bond?

1

Covalent bonds can only occur between atoms of the same element.

1

In a covalent bond, the atom with the higher electronegativity completely takes the electrons from the other atom.

1

If oxygen has an electronegativity of 3.5 and hydrogen has an electronegativity of 2.1, what is the difference in electronegativity?

1

Using the Pauling scale, sodium (Na) has an electronegativity of 0.93, whereas chlorine (Cl) has an electronegativity of 3.16. What is the difference?

1

Carbon (electronegativity - 2.55) forms a covalent compound with hydrogen (electronegativity - 2.1). Calculate the difference in electronegativity.

3

Using the Octet Rule and the electron configuration of each element, select all of the the answers that explain what the elements need to do in order to achieve stability.

5

Show the Ionic compound formation equation for Li and Cl.

2
_______ and _______ form an ion.
3

Match the following metals to form alloys.

Draggable itemCorresponding Item
tin
carbon
iron
zinc
copper
copper
1

Why are metals shiny?