Chapter 6 - Inside The Atom

Question 1

Nucleus

Answer 1

Central part of the atom, made up of protons and neutrons

Question 2

Protons

Answer 2

Positively charged particles found in the nucleus of an atom

Question 3

Neutrons

Answer 3

Particles that are found in the nucleus of an atom. They have no charge

Question 4

Electrons

Answer 4

Negatively charged particles that orbit the nucleus of an atom

Question 5

Isotope

Answer 5

Atoms of the same element that have a different number of neutrons in the nucleus

Question 6

Stable

Answer 6

An atom who’s nucleus is held strongly together

Question 7

Unstable

Answer 7

An atom where the nucleus is not held together well

Question 8

Radioisotopes

Answer 8

A radioactive isotope

Question 9

Nuclear radiation

Answer 9

Radiotion from the nucleus of an atom, made up of alpha particles, beta particles or gamma rays

Question 10

Alpha particles

Answer 10

Positively charged helium nuclei

Question 11

Beta particles

Answer 11

Either negatively or positively charged particles with the same size and mass of an electron

Question 12

Gamma rays

Answer 12

High energy electromagnetic radiation produced during a nuclear reaction

Question 13

Half-Life

Answer 13

Time taken for half of the radioactive atoms in a sample to decay

Question 14

Cosmic radiation

Answer 14

Naturally occurring radiation found in outer space