Semester Exam Review

Below are some chemical properties.

I. thermal conductivity

II. electrical conductivity

III. malleability

IV. ductility

Which of the above properties would a substance that has metallic bonding normally have?

• I, II, IV

• I, II

• II, III, IV

• I, II, III, IV

Which of the following best describes a metallic bond?

• fixed position in a lattice

• a sea of free moving electrons

• concentrated electron density around specific atoms

• electron pairs existing in multiple bonds

When a nonmetal is hit with a hammer it will crumble or break. Metals on the other hand will bend when it is hit. What physical property is indicated?

• conductivity

• permeability

• malleability

• ductility

Uranium is mined in ores around the world. The leftover material has small amounts of Uranium in it. Which of the following radiation types would be the most dangerous that could be given off by that radiation and making it difficult to recycle the leftover materials?

• alpha radiation

• beta radiation

• gamma radiation

• neutron radiation

When there is a nuclear explosion, a concrete wall is needed to provide protection. Which type of radiation needs the thick concrete explosion to stop it?

• alpha radiation

• beta radiation

• gamma radiation

• neutron radiation

Which of the following types of radiation is not a particle?

• alpha radiation

• beta radiation

• gamma radiation

• neutron radiation

Which of the following type of radiation is considered the weakest type of radiation?

• alpha radiation

• beta radiation

• gamma radiation

• neutron radiation

Which of the following types of radioactive decay gives off the most penetrating "particle"?

• alpha radiation

• beta radiation

• gamma radiation

• neutron radiation

In which of the following nuclear equations would an alpha particle balance the equation.

• A

• B

• C

• D

Identify the missing particle in the following reaction:

• A

• B

• C

• D