Atomic history and atoms

The nucleus of the most atoms is composed of

An atom has a mass number of 23 and atomic number

Electrons was discovered by

Isotopes of an element contain different numbers of

Who first proposed an atomic theory based on scientific knowledge

Fixed circular

What did ruther ford conclude about the structure of the atom

In the gold foil experment most of the particals fired at the foil

Isotopes are atoms of the same element that have diffrent

An aluminum istope consists of 13 protons and 1 electron

A nuclear particle that has about the same mass as a proton but with no eletrical charged is

During a chemical reation atomic number

Who explained the behaviour os positivery charged particles being defleced from a metal foil

The gold foil experiment led to the discovery of the

Atoms of the same element that have a different masses are called

Experiments with cathode rats led to the discovery