Four very important people contributed to the discovering of the Atomic theory.
Who are John Dalton, Joseph J. Thomson, Eurnest Rutherford and Neil's Bohr?
100
Periotic Table is based on the work of a Russian Scientist
Who is Dmitri Mendeleev?
100
All elements and compounds have state, color, Density, etc.
What are Physical Properties?
100
The ability of a substance to conduct heat or electricity.
What is Conductivity?
200
Something that takes up space and has a mass.
What is Matter?
200
Elements are arranged on the table according to a number.
What is the Atomic number?
200
Gaining or loosing electrons but number of protons stay the same.
What is an ion?
200
Measures how close the particles of a substance are packed together.
What is Density?
300
Basic building blocks of matter that make up every day objects.
What is an atom?
300
Alkali metals, Alkali Earth Metal, Halogens, and Noble Gases are all alike.
What is a Chemical family?
300
A substance that cannot be broken down into a simple substance.
What is an element?
300
One theory is that explains the pattern and behaviour of matter.
What is the kinetic molecular theory?
400
Particle made out of different atoms.
What is a molecule?
400
Seven rows across the table that have different groups.
What are periods?
400
Pure substance made up of two or more elements.
What is a compound?
400
Substance that changes its state, appearance, or shape but remains the same substance. Also a chemical that takes place on the molecular level and produces a new substance.
What are physical and chemical changes?
500
Smaller particles of an atom are made up of subatomic particles.
What are electrons, protons and neutrons?
500
Model that shows how electrons circle around the nucleus of an atom.
What is the Bohr Model?
500
Small group of atoms that behave like a single atom.
What is a Polyatomic ion?
500
Substance that becomes a solid from a liquid. Also a substance in which a liquid becomes a gas.