The periodic table
The number of protons in a element
What is the atomic number
The sum of protons and neutrons in an atom
What is the atomic mass?
The philosopher Democritus was the first one to think of the atom, he lived in this European country
What is Greece
This scientist discovered the proton
Who was Ernest Rutherford
The negative charge of the atom
What is the electron
The atomic number if there are 11 protons in a atom
What is 11
The number of protons if the atomic number is 20
What is 20 protons
A different idea from Democritus thought that every thing is made of either Earth, Water, Air or Fire
Who was Aristotle
The scientist that discovered that atoms of the same compound are alike
Who was John Dalton
Where the protons and neutrons are in the atom
What is the nucleus
The atomic mass when there are 8 protons and 10 neutrons
What is 18
The atomic mass of a element with 9 protons and 27 neutrons
What is 36?
This scientist discovered the neutron
Who was James Chadwick
J.J Thomson discovered this part of the atom
What is the electron
The positive charge in the atom
What is the proton
The number of neutrons if the atomic number is 9 and the atomic mass is 24
What is 15 neutrons
The number of neutrons if there is a atomic number of 2 and and a atomic mass of 12
What is 10
This scientist thought that electrons orbited around the atom
Who was Niels Bohr
This scientist thought that a atom was a sphere
Who was Democritus
Where the electron are in the atom
What is the electron cloud
The atomic number if there are 28 neutrons and has a atomic mass of 48
What is 20
The atomic number if there are 39 protons and the atomic mass is 58
What is 19
This scientist conducted the plum pudding experiment
Who was J.J. Thomson
This scientist conducted the gold foil experiment
Who was Ernest Rutherford
This part of the atom was discovered by Ernest Rutherford
What is the proton.