Semester 1 Final Exam

Front

What is Nuclear Energy?

Back

Energy stored in the nucleus of an atom.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

How are elements arranged in the modern periodic table?

Back

Elements are arranged by atomic number.

Front

How many elements are in Fayalite (Fe2SiO4)?

Back

Fayalite contains 3 elements: Iron (Fe), Silicon (Si), and Oxygen (O).

Front

What is Gravitational Potential Energy?

Back

The energy an object possesses due to its position in a gravitational field.

Front

What is Matter?

Back

Anything that has mass and takes up space.

Front

What is an Atom?

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is a Chemical Reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the difference between Potential Energy and Kinetic Energy?

Back

Potential Energy is stored energy based on position, while Kinetic Energy is the energy of motion.

Front

What is the significance of the atomic number?

Back

The atomic number determines the identity of an element and the number of protons in its nucleus.