Science Flashcard on Atomic Structure and Properties

Front

Why are metals good conductors of electricity?

Back

Metals have free-moving electrons that allow energy to flow.

Front

What do models do in relation to atomic structure?

Back

Models simplify complex systems to make predictions about atomic behavior.

Front

What does the melting point difference between water and salt indicate?

Back

Salt has stronger bonds between particles than water.

Front

Why do different substances have different melting points?

Back

The arrangement and strength of bonds between particles.

Front

What distinguishes one element from another on the periodic table?

Back

The number of protons in the nucleus.

Front

What are atoms?

Back

Atoms are the basic building blocks of matter.

Front

What is an element?

Back

An element is a pure substance made of only one type of atom.

Front

What is a molecule?

Back

A molecule is formed when two or more atoms bond together.

Front

What is the atomic number?

Back

The atomic number is the number of protons in an atom's nucleus.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements combine.