John Dalton's theory is known as Dalton's Atomic Theory.
What are elements made of
Elements are made of atoms.
An atom of hydrogen and an atom of carbon are what?
An atom of hydrogen and an atom of carbon are different elements.
What are compounds made of
Compounds are made of different elements that are chemically bonded together.
The ration of atoms in HCI is
The ratio of atoms in HCl (hydrochloric acid) is 1:1. This means that one atom of hydrogen (H) combines with one atom of chlorine (Cl) to form one molecule of HCl.
What did J.J Thompson discover
J.J. Thomson discovered the electron. Through his experiments with cathode rays, he determined that these rays were made up of negatively charged particles, which he named electrons. This discovery led to the development of the plum pudding model of the atom.
What is the charge of an electron
The charge of an electron is -1.
What are the cathode rays made of
Cathode rays are made of streams of electrons.
Why do electrons move from the negative end of the tube to the positive end
Electrons move from the negative end (cathode) of the tube to the positive end (anode) because they are negatively charged particles. Opposite charges attract each other, so when a voltage is applied across the tube, the positive terminal (anode) attracts the negatively charged electrons, causing them to move in that direction.
What was Thomson working with when he discovered cathode rays
Thomson was working with cathode ray tubes when he discovered cathode rays. These tubes are glass tubes containing a gas at low pressure. When a high voltage is applied to the electrodes within the tube, it creates an electric field that accelerates the electrons, producing a beam of cathode rays. These rays were then observed and studied by Thomson to understand their properties.
