Show:
who's who
the atom
The periodic table
periodic table 2
left overs
100
I found the nucleus of the atom
Who is Ernest Rutherford
100
part of the atom with a negative charge
What is the electron
100
vertical columns
What is a group or family
100
tells the number of protons in the nucleus of an atom
What is atomic number
100
a charged particle
What is an ion
200
I discovered the neutron
Who is James Chadwick
200
part of the atom with a positive charge
What is the proton
200
horizontal rows
What is a period
200
sum of the protons and neutrons in the nucleus of the atom
What is mass number
200
atoms of the same element with different mass numbers
What are isotopes
300
I used a cathode ray to discover the electron
Who is Joseph John Thompson
300
part of the atom with no charge
What is the neutron
300
name for group 18 elements
What is noble gases
300
13 C find the number of proton,neutron and electrons 6
What is 6,7,6
300
I believe that matter is continuous or can continually be cut up
What is Aristotle
400
I came up with the first periodic table of element
Who is Dmitri Mendeleev
400
the 2 parts that make up the nucleus of the atom
What is the proton and neutron
400
name for group 17 elements
What is halogens
400
elements found on the stair step line
What are metalloids
400
3-d region around the nucleus of an atom where electrons can be found
What is an orbital
500
I created the modern periodic table of elements
Who is henry Mosley
500
I came up with the atomic theory
What is John Dalton
500
name for groups 3-12 elements
What is transition metals
500
find the proton, neutrons and electrons for 25Mg 2+ 12
What is 12,13,10
500
a positively charge particle
What is a cation