Atoms
What is an atom?
The smallest unit of matter.
What is the periodic table?
The table of elements.
What is science?
the systematic study of natural events
What is a coefficient number?
A number that is placed infant of the chemical symbol
What did Albert Einstein do?
He created and is most well known for creating the theory of relativity.
Who created the atomic theory?
John Dalton.
Who created the periodic table?
Dmitri Mendeleev
What does it mean to be skeptical?
You don't except everything you hear.
What is a chemical reaction?
The process where atoms are rearranged to create new substances.
How many bones are in the human body?
206
What are the parts of an atom? What are their charges?
Protons (positive) Neutrons (Neutral) Electrons (Negative)
What year was the periodic table created?
1869
What is a scientific explanation?
An explanation based off of observation & data
An endothermic reaction is. . .
Chemical reaction that implies an input of energy
True or False: 20% of the Earth's Oxygen is created by the Amazon Rain Forest.
True
What year was the atomic theory created?
1808
What are the two rows called that are detached from the table?
Lanthanides & actinides
What is pseudoscience?
If an element has 23 protons and the mass number is 41; how many neutrons are in it?
18
True or False: There is enough DNA in the human body to stretch from Earth -> Pluto and back
true
Who are all the men that worked on the atomic theory?
John Dalton, Niels Bohr, JJ Thomson, Ernest Rutherford
How many elements are there?
118
What is a hypothesis?
Hypothetical theory that needs to be discovered.
What is the law of conservation of energy?
energy cannot be created or destroyed.
True or False: Universal Gravity is a fact
False