Atomic Structure

Question 1

________ was the notion that all matter was composed of very tiny, individual, finite and invisible particles.

Answer 1

Atomism

Question 2

________ is an evacuated glass tube in which a stream of electrons emitted by a cathode strikes a fluorescent material causing it to glow. It is very important in terms of discovering on measuring the mass/charge of an electron.

Answer 2

Cathode Raytube

Question 3

Type of radioactivity that has positive 2 charge, move upward

Answer 3

Alpha

Question 4

Type of Radioactivity that has neutral charge (0) charge.

Answer 4

Gamma

Question 5

Type of Radioactivity that hascharge of negative one (-1),move downward

Answer 5

beta

Question 6

________ are negatively charged subatomic particles

Answer 6

Electrons

Question 7

_______ is a positive electrode at which oxidation occurs.

Answer 7

Anode

Question 8

_______ is the negative electrode at which reduction occurs

Answer 8

Cathode

Question 9

_______ is the concentrated core of an atom which contains protons and neutrons.

Answer 9

Nucleus

Question 10

______ is positively charge sub atomic particle found in the nucleus of an atom.

Answer 10

Proton

Question 11

________ is a sub atomic particle found in the nucleus with no charge and has a mass of one amu.

Answer 11

Neutron

Question 12

_____ is an atom or group of atoms that has a positive or negative charge.

Answer 12

Ion