Periodic Table parts
Periodic Table properties
History of the atom
Subatomic Particles
Elements
100
This is the location of metallic elements
What is to the left of the staircase line
100
These elements are the only completely stable elements on the periodic table
What is the Noble Gas elements
100
The first subatomic particle to be discovered (by Thompson)
What is the electron
100
The nucleus of an atom contains these subatomic particles
What are the proton and the neutron
100
This element has 26 protons
What is iron
200
This is the name given to group 3 - 13 elements
What is Transition metals
200
These elements are "semiconductors"
What is metalloids
200
Neils Bohr put the electrons in these
What are shells (energy levels or orbits)
200
These subatomic particles move around outside the nucleus
What are electrons
200
This element has an atomic mass of 24.305
What is Magnesium
300
This is the group number for the Halogens
What is 17
300
These are the "useful" metals
What are Transition metals
300
Democritus said all matter is made up a basic indivisible particles called _____________________
What are atoms
300
The mass number is sum of these two subatomic particles
What is protom and the neutron
300
This element is found in group 13, period 3
What is Aluminum
400
This is the location of the Lanthanide and Actinide series
What is at the bottom of the table
400
These are the most reactive metals
What is Alkali metals
400
Aristotle said all matter was made of 4 elements: _________, __________, _________, and __________
What are air, earth, fire, and water
400
Two atoms of the same element may contain a different number of these
What is the neutron
400
The most abundant isotope of this element has a mass number of 16
What is Oxygen
500
These elements are found along the staircase line
What is the metalloids
500
These element have 2 valence electrons
What are Alkaline Earth metals
500
Rutherford used his gold foil experiment to find out the all atoms have a small, dense, positively charged center which he called _______________
What is the nucleus
500
These electrons are in the outermost shell of an atom and are the ones responsible for atoms combining to form chemical compounds
What is valence electrons
500
This element has two completely full shells of electrons
What is Neon
M
e
n
u