Particle Theory
Things that have mass and take up space.
What is matter?
A substance made up of only one type of atom.
What is a pure substance?
A characteristic that can be measured without destroying the original substance.
What is a physical property?
Vertical columns of elements in the periodic table.
What are groups or families?
What are protons and neutrons?
All matter is made up of these that have empty spaces between them.
What are tiny particles?
A substance made up of two or more different atoms bonded together.
What is a compound?
Describes how a chemical reacts / behaves.
What is a chemical property.
Stable gases that have a full valence shell.
What are the noble gases?
What is Carbon?
Particles are in constant random blank.
What is motion?
A mixture that appears as one phase (uniform)
What is a homogeneous mixture?
Colour, odour, malleability, melting point, and solubility.
What are physical properties?
Have an ion charge of 1+
What is the alkali metals?
Particles with negative charge found in orbits around the nucleus.
What are electrons?
The particles of a substance moves faster as this increases.
What is temperature?
A mixture that appears as 2 or more phases.
What is a heterogeneous mixture?
Reacts with water, corrodes, flammable, acid or base.
What are chemical properties?
Extremely reactive non-metals.
What are the halogens?
The number of protons in an atom which determines the element.
What is the atomic number?
The forces of attraction are stronger when particles are blank together.
What is closer?
Pulpy Orange Juice
What is a heterogeneous mixture?
New colour, new odour, new gas, new solid, heat/light is produced.
What are chemical changes?
Have 2 valence electrons.
What are the alkaline earth metals?
An element has 14 protons, 14 electrons and a mass number of 29. Determine the number of neutrons.
What are 15 neutrons?