Structure Of The Atom Quiz #1 Flashcards
Density definition:
A measure of how much mass is contained in a given unit volume of a substance.
How do you calculate density?
Density = mass divided by the volume.
How do you calculate mass?
Mass = density multiplied by volume.
How do you calculate volume?
Volume = mass divided by density.
More dense:
When molecules are tightly packed.
Less dense:
When molecules are less tightly packed and their are air spaces.
What does the grass method stand for?
G - given R- required A- analysis S- solve/ solution S- statement
The definition of an atom:
The smallest unit of an element.
The definition of an electron:
A negatively charged particle in an atom.
The definition of a proton:
A positively challenged particle in the atoms nucleus.
The definition of a neutron
A neutral particle in the atoms nucleus.
The definition of an atomic number
The number of protons in an atoms nucleus.
Where is the mass and elements atomic number placed when using standard atomic notation?
Mad sis on the top left corner and elements atomic number is on the bottom left corner.
How are the elements in the periodic table of elements organized?
Order of increasing atomic number
What is the elements atomic number equal too?
The number of protons
