Chemistry First Semester Final Practice Test - Period 6

Front

In the periodic table, elements in the same column typically have:

Back

Similar chemical properties.

Front

Which subatomic particle has no charge?

Back

Neutron.

Front

An atom of an element has 14 protons, 12 neutrons, and 15 electrons. What is the charge of this ion?

Back

-1.

Front

What does the atomic number of an element represent?

Back

It equals the number of protons.

Front

Which subatomic particle is NOT found in the nucleus of an atom?

Back

Electron.

Front

What is the definition of an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is the charge of a proton?

Back

+1.

Front

What is the charge of an electron?

Back

-1.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

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.