Midterm Topic Review

Front

What is the half-life of iodine-131?

Back

8 days

Front

What is the term for the deterioration of a metal due to chemical reactions with the environment?

Back

Corrosion

Front

If an atom has 5 protons, 6 electrons, and an atomic mass of 11, how many neutrons does it have?

Back

6

Front

What is found on the left-hand side of the periodic table?

Back

Metal

Front

TRUE or FALSE: To change the state of matter, you need to increase or decrease energy (heat).

Back

TRUE

Front

What is the definition of half-life in radioactive decay?

Back

The time required for half of the radioactive atoms in a sample to decay.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the process of oxidation?

Back

A chemical reaction where a substance loses electrons, often associated with the addition of oxygen.