ALL ABOUT ATOMS
What is the charge of a proton?
Positive
Define an Element.
The building blocks of all matter and are made of Atoms.
Define a Compound.
A material composed of two or more components.
Who established the Bohr Model in 1913?
Niels Bohr
What is the charge of a neutron?
No charge or Neutral
What subatomic particles are located in the nucleus?
Protons and Neutrons
What are the rows of the periodic tabled referred to as?
Periods
Define a Mixture.
A substance made by mixing two or more substances together.
Who performed the Gold Foil Experiment ini 1909?
Ernest Rutherford
An organized list of all the elements that can build matter
Periodic Table of Elements
The smallest unit of matter.
What are the columns of the periodic tabled referred to as?
Groups
Define Matter.
Anything that has a mass AND takes up space.
Full definition required for points!Who proposed the Atomic Theory of Matter in 1803?
John Dalton
What are the rings around the nucleus of an atom called? Also where electrons can be found.
Energy Levels
What is the name of the subatomic particle that is found orbiting the nucleus?
An Electron
What information can you get from the Atomic # of an Element?
Number of Protons AND/OR Electrons.
Elements that have similar properties are called what?
Families
What were electrons formerly called when founded by JJ Tompson?
Corpuscles
What is the Law of Conservation of Matter?
Matter is neither created or destroyed.
This scientist discovered the neutron in 1932.
James Chadwick
What information can you get from the Atomic Mass of an Element?
# of Protons + # of Neutrons = Atomic Mass
What is the ratio of atoms in the compound H2O?
2:1 Ratio
2 Hydrogen Atoms
1 Oxygen Atom
Who is known as “The Father of Chemistry”. The first person to generate a list of 33 Elements on the periodic table.
Antione Lavoisier
Who was the first scientist to propose an atomic theory in between 460 BC - 370 BC?
Democritus