Vocab
Anything that has mass and takes up space
What is Matter?
The central part of an atom
What is the nucleus?
Who was John Dalton?
A substance composed of only one kind of atom
What is an element?
Definite Shape, Definite Volume
What is a Solid?
The amount of space an object takes up
What is Volume?
The part of an atom with a positive charge located within the nucleus
What is a proton?
JJ Thompson said that atoms contained these
What are positive and negative charges?
A substance where two or more different elements are chemically bonded together.
What is a Compound?
Definite volume, no definite shape
What is a Liquid?
How much matter is in a given space.
What is density?
The part of an atom with a neutral charge located in the nucleus
What is a neutron?
Ernest Rutherford identified these two parts of an atom.
What are protons and electrons?
What is a Mixture?
What is a Gas?
How much matter is in an object
What is mass?
The part of an atom with a negative charge
What is an electron?
Neutrons in atoms were identified by this person.
Who is James Chadwick?
Water is a _______________
What is a Compound?
Molecules are tightly packed together and cannot move in this state
What is a Solid?
Changes in matter which result in a new substance
What is a chemical change?
The area surrounding the nucleus of an atom where the electrons are located
What is the electron cloud?
This person said electrons orbit the nucleus of an atom in what he called shells or energy levels.
Who is Neils Bohr?
The air we breathe is an example of ______________
When a substance changes directly from a solid to a gas
What is Sublimation?