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Year 10 F. Homework 12th Jan
By Kirsty Blake
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Last updated over 4 years ago
10 questions
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Question 10
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State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet X-rays
Gamma rays
Microwaves
Radio waves
Infrared
Visible light
Ultraviolet X-rays
Gamma rays
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
Gamma rays
What is an ion?
A range of waves of different frequencies.
An atom that has gained or lost an electron to become charged
An electron moves further from the nucleus to a higher energy level
The atomic number tells us………
.…….the number of neutrons
.…..the total number of protons and neutrons
.…… the number of protons which will be the same as the number of electrons
A negative ion is formed when…
the atom gains electrons
the atom loses electrons
the total number of electrons inside the atom stays the same
What can make a nucleus unstable?
-Too many nucleons (neutrons and protons)
Many more protons than neutrons
-Many more neutrons than protons
What does an unstable nucleus do in order to become more stable?
Gives out radiation
Takes in electrons
Nothing
What is radioactive decay?
The process by which an atom becomes a compound
The process by which an atom takes in radiation to become more stabe
The random process by which a nucleus gives out radiation to becomes more stable
An alpha particle is made up of…….
two protons and two electrons
two protons and two neutrons
two electrons and two neutrons
What are the three types of radiation that can be emitted from an unstable nucleus?
Alpha, Beta , delta
Alpha, beta, gamma
Alpha, gamma, xray
What is a beta particle β?
A high speed electron that is ejected from the nucleus
A high speed neutron that is ejected from the nucleus
A high speed proton that is ejected from the nucleus