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WorksheetsYear 9 Atomic Structure
Total questions: 14
Worksheet time: 7mins
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
Atomic number tells us:
The number of protons + electrons in the nucleus
The number of electrons + neutrons in the nucleus
The number of electrons in the nucleus
The number of protons in the nucleus
The mass number of an atoms tells us
How many protons, electrons and neutrons are in an atom of phosphorus
How are the electrons arranged in an atom of Magnesium
2, 8, 2.
