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History of Chemistry
An-ATOM-y
Atomic Numbers
What's the Matter?
Definitions
100
Early people thought that everything was made up of uninterrupted blobs of matter.
What is the continuous theory of matter?
100
The inner part of an atom that contains the proton and the neutron.
What is the nucleus?
100
The mass unit for atoms.
What are AMU?
100
Anything that takes up space (has a mass).
What is matter?
100
Groups that are formed when atoms join together.
What are molecules?
200
The model of the atoms where (negative) electrons are surrounded by a soup of positive charge.
What is the plum pudding model of the atom?
200
Particles that have a positive charge and are found in the nucleus.
What is a proton?
200
Some atoms have more ___________, which makes it an isotope and gives it a negative charge
What are electrons?
200
The smallest pieces of matter.
What are atoms?
200
An object's mass divided by the volume that the object occupies.
What is density?
300
The name for the earliest form of chemistry.
What is alchemy.
300
These particles are located within the nucleus, and have no charge.
What is a neutron?
300
Atomic numbers on the periodic table are the same as the number of this subatomic particle.
What are protons (or electrons)?
300
The phase of matter where the atoms closest together.
What is a solid?
300
The electrons that exist farthest away from an atom's nucleus. They are the electrons with the highest energy level number.
What are valence electrons?
400
Names for elements comes from the English or the __________ name.
What is latin?
400
Particles that are negatively charge and found outside the nucleus.
What are electrons?
400
The atomic mass of a neutron.
What subatomic particle is 1 AMU?
400
The substance formed when two or more atoms join together.
What is a molecule?
400
A chemical formula that provides a simple, whole-number ratio for the atoms in a molecule.
What is an empirical formula?
500
The theory that light sometimes behaves as a particle and sometimes as a wave.
What is the particle/wave duality theory?
500
The location where most of the mass of the atom is.
What is the nucleus?
500
Carbon's atomic number.
What is 6?
500
What type of particle are quarks held together by?
gluons
500
Ions that are formed when a group of atoms gains or loses electrons.
What are polyatomic ions?