discover/origin
who first theorized about atoms existing ?
who is democritus ?
What two parts of an Atom make up the Atomic Mass?
What is Protons and Neutrons?
do isotopes occur naturally?
Yes
what subatomic particle has no charge?
What is a neutron?
What type of Atom is Lithium?
What is Alkali metal?
who created the plum pudding model ?
who is thompson ?
What part of the Atomic Mass is always the same?
What are protons?
This number for an atom does change between isotopes ?
Atomic mass ?
What subatomic particle has a positive charge and located inside the nucleus
What is a Proton?
What type of Atom is Flouride?
What is halogen?
who wrote the first atomic theory ?
who is dalton ?
what is the number of the element that never changes?
What is the Atomic Number?
this number for the atom does not change between atoms ?
The atomic number ?
what subatomic particle is located outside the nucleus?
What is an Electron?
What type of Atom is Neon?
What is noble gases?
who discovered that an atom is mostly empty space
Who is Ernest Rutherford ?
What subatomic particle makes up the Atomic number?
What are Protons?
what part of the atom changes in an isotope ?
the neutron ?
Which part of the atom has the smallest mass?
What is an electron?
What type of Atom is Arsenic?
What is Metalloid?
what two scientists worked on the gold foil experiment and made discoveries about the atom ?
who are Ernest Rutherford and James Chadwick ?
What number do you subtract the neutrons from to find the Atomic number?
What is The mass number?
are all isotopes of equal proportion in nature?
No
Atoms of different elements have different numbers of these.
What is proton?
What type of Atom is Tungsten?
What is Transitions Metals?