Unit 1 Chemistry Flashcard

Front

What is the shape of the orbits in which electrons move around the nucleus according to Bohr's model?

Back

Circular

Front

What type of energy is defined as stored energy in matter due to its position relative to other matter?

Back

Potential energy

Front

What are the particles that make up matter called?

Back

Atoms

Front

What is the approximate mass of an electron in atomic mass units (amu)?

Back

0.0005 amu

Front

What is the definition of average atomic mass?

Back

The average of all the masses of all of the different isotopes for an element.

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom

Front

What is the term for the energy of motion?

Back

Kinetic energy

Front

What is the term for the energy stored in chemical bonds?

Back

Chemical potential energy

Front

What is the nucleus of an atom composed of?

Back

Protons and neutrons

Front

What is the charge of a proton?

Back

Positive