Science Flashcard on Atomic Structure and Properties

Front

What is an atomic model?

Back

An atomic model is a theoretical representation that describes the structure and behavior of atoms, simplifying complex systems to make predictions about atomic behavior.

Front

What does the melting point of a substance indicate about its particles?

Back

The melting point indicates the strength of the bonds between particles; a higher melting point suggests stronger bonds.

Front

Why do different substances have different melting points?

Back

Different substances have different melting points due to the arrangement and strength of bonds between their particles.

Front

What makes metals good conductors of electricity?

Back

Metals are good conductors of electricity because they have free-moving electrons that allow energy to flow.

Front

What distinguishes one element from another on the periodic table?

Back

One element is distinguished from another by the number of protons in its nucleus.

Front

What is the significance of protons in an atom?

Back

Protons determine the atomic number of an element and its identity.

Front

What role do neutrons play in an atom?

Back

Neutrons contribute to the mass of an atom and can affect its stability.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

How do ionic bonds differ from covalent bonds?

Back

Ionic bonds involve the transfer of electrons between atoms, while covalent bonds involve the sharing of electrons.

Front

What is the relationship between temperature and particle movement?

Back

As temperature increases, the movement of particles increases, leading to changes in states of matter.