Matter
What is the definition of matter?
Matter is anything that has mass and takes up space.
What is the purpose of wearing safety goggles/ protective eyewear?
Safety goggles are used to protect eyes from potential liquid or chemical splashes, fumes and vapors.
Where is the nucleus located?
The center of the atom
What group are most alkali metals apart of?
Group 1A
How do you calculate density?
Mass divided by volume
What type of footwear should you wear during a lab?
Closed toe shoes
Who was the First scientist to come up with Atomic theory?
John Dalton
Where are valence electrons located?
The outermost shell of an atom is
What is a physical change?
A physical change is a type of change where the appearance or form of the matter changes but not the substance itself.
How should you safely smell a chemical?
Waft the smell towards your nose with your hand
What did JJ Thomson discover?
The electron
Who invented the periodic table?
Dmitri Mendeleev
Is burning a chemical or physical change?
Chemical change
What should you do if a chemical substance comes into contact with your eye?
Use the eyewash station
What is an atom with a different number of neutrons called?
Isotope
What is the least reactive column on the periodic table?
Noble gases
What is the Law of the Conservation of Mass?
The law of conservation of mass states that in a chemical reaction mass is neither created or destroyed.
When heating a substance in a test tube where should the tube be pointed?
Away from yourself and others
Which scientist disagreed with the idea that atoms existed?
Aristotle
What are the two periodic trends of atomic radius?
Atomic radius increases from top to bottom and decreases from right to left