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Matter
States of Matter
Atomic Theory
The Atom
Atom, Ion, or Isotope?
100
Anything that has mass and takes up space.
What is matter?
100
The three most common states of matter.
What are solid, liquid, and gas?
100
He is the Father of the Modern Atomic Theory.
Who is John Dalton?
100
A pure substance that is the smallest building block of matter.
What is the atom?
100
An atom that has a positive or negative charge, depending on the number of electrons as compared to protons.
What is an ion?
200
The two components that make up matter.
What are pure substances and mixtures?
200
The molecules are arranged in a regular, repeating pattern and are so close that they jiggle.
What is a solid?
200
He stated that at its smallest, ATOMOS is indivisible and had a lot of empty space.
Who is Democritus?
200
The three subatomic particles of the atom.
What is proton, neutron, and electron?
200
A neutral atom that has a different number of neutrons than it has protons.
What is an isotope?
300
The components that make up a pure substance.
What are elements and compounds?
300
A substance that exists in two states at the same time...an example is "gloop."
What is a colloid?
300
He established the Plum Pudding Model of Atomic Theory.
Who is JJ Thomson?
300
The number of neutrons and protons in an atom.
What is mass number?
300
The name of an ion that has given up an electron and now has a positive charge.
What is a cation?
400
A uniformly blended mixture.
What is a homogeneous mixture?
400
The molecules are able to flow past each other.
What is a liquid?
400
His Gold Foil Experiment led to the discovery of the positively charged dense nucleus and its protons.
Who is Ernest Rutherford?
400
The subatomic particle that identifies the atom.
What is the proton?
400
The name of an ion that has received an electron and now has a negative charge.
What is an anion?
500
A mixture in which the individual substances remain distinct.
What is a heterogeneous mixture?
500
These molecules fly in all directions at great speed, assumes the shape of their container, and are compressible.
What is a gas?
500
Though outdated, his atomic model is still used for convenience when explaining energy levels.
Who is Neils Bohr?
500
The dense positively charged center of the atom.
What is the nucleus?
500
The element that has 6 protons, 8 neutrons, and 6 electrons.
What is Carbon - 14?