Year 9 Atomic Structure

What does the Periodic Table display?

• All the compounds

• All the elements

• All the molecules

• All the mixtures

Who argued that everything in the world was made up of particles so small they could not be cut in half?

• Aristotle

• Democritus

• Plato

• Socrates

What did Democritus call these tiny things?

• Molecules

• Atoms

• Particles

• Cells

What Greek word does "atom" come from and what does it mean?

• Atomos, meaning divisible

• Atomos, meaning tiny/indivisible

• Atomus, meaning small

• Atomus, meaning large

When did John Dalton refine the idea of atoms?

• 1700’s

• 1800’s

• 1900’s

• 2000’s

What are the names of the atoms’ subatomic particles?

• Protons, neutrons, and photons

• Protons, neutrons, and electrons

• Protons, electrons, and quarks

• Neutrons, electrons, and positrons

Where is the cluster of protons and neutrons found in an atom?

• Shells

• Orbitals

• Nucleus

• Electron cloud

Where do the electrons reside in an atom?

• Nucleus

• Shells

• Core

• Centre

How are elements organised on the Periodic Table?

• By mass number

• By atomic number

• By alphabetical order

• By density

What is the maximum number of electrons that can be contained in the second shell of an atom?

• 2

• 4

• 6

• 8