U3a Atomic Theory & Counting Subatomic Parts

Person that discovered the electron using cathode ray tubes:

Two atoms of the same element with different masses are called what:

Isotopes of the same element occur when the atoms have a different number of:

Ions of the same element occur when the atoms have a different number of:

Proposed that electrons circle the nucleus like planets forming his Planetary Model

What is this atom's mass number?

If this atom has a -2 charge, how many protons does this atom have?

Which laws is represented by the following: N₂O has ratio of N:O as 2.8 : 1, but NO, ratio is 1.4 : 1

If this atom has a -2 charge, how many electrons does this atom have?

Based on what is shown, what is this atom's charge?

What is this atom's atomic number?

The 1st atomic theory was proposed by:

Two atoms of the same element with different charges are called what:

How many neutrons does this atom have?

How many electrons does this atom have?

Which one of these did Aristotle NOT include in his 4 things all things were made of?

The 1st person to propose the idea that stuff was made up of tiny particles & used term atomos

Discovered positively charged core (nucleus) & atom's empty space using gold foil experiment:

Which laws is represented by this: Butane always has a total mass that's 92.4% C & 7.6% H