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WorksheetsEL5 - Ionising Radiation
Total questions: 41
Worksheet time: 21mins
What is the relative mass of the proton?
1
0
1/2000
What is the relative charge of a neutron?
1
-1
0
What is an isotope?
A nucleus with the same number of protons but different number of electrons
A nucleus with the same number of protons but different number of neutrons
A nucleus with the same number of neutrons but different number of protons
Nitrogen-14 has 7 protons. How many neutrons does it have?
7
14
21
The atomic number of an element is...
The number of protons
The number of electrons
The number of neutrons
What has an ionised atom lost or gained?
Protons
Electrons
Neutrons
What has changed in the structure of the Cu2+ ion?
It has gained two protons
It has lost two electrons
It has gained two electrons
Why is deuterium 2H sometimes called heavy hydrogen?
It has an extra electron
It has an extra proton
It has an extra neutron
What does alpha radiation consist of?
two protons and two neutrons
one electron
electromagnetic radiation
Which type of radiation is the least penetrating?
gamma
alpha
beta
Which type of radiation travels the furthest in air?
alpha
beta
gamma
What charge is alpha radiation?
negative
neutral
positive
Which type of radiation will be attracted to a positively charged plate?
Beta
Alpha
Gamma
A Geiger counter is placed near a radioactive source and different materials are placed between the source and the Geiger counter. The results of the tests are shown in the table. What is the radiation emitted by the source?
α only
α and γ
α and β
β and γ
β particles are emitted from a radioactive source in a school laboratory.
What is correct for these particles?
A strong magnetic field will not deflect them.
They are absorbed by aluminium.
They do not damage human tissue.
Their range in air is shorter than that of α particles.
What do these isotopes of carbon all have in common?
126C, 136C, 146C
they all have the same number of neutrons & mass number
they all have the same atomic number and neutrons
they all have the same atomic number and electrons
they all have the same number of protons, atomic number, and mass number
During radioactive decay, the element can change?
true
false
An atom that loses an electron is called an _____________________and has an overall _________________________ charge.
ion ; positive
ion ; negative
isotope ; positive
ion ; neutral
Carbon-14 and carbon-12 are two of the isotopes of carbon. The nucleus of a carbon-12 atom has the same number of ________________ as the nucleus of a carbon-14 atom.
protons
neutrons
electrons
Radiotherapy is
Irradiation
Contamination
Eating Radioactive material is
Irradiation
Contamination
Sterilizing surgical instruments is
Irradiation
Contamination
Alexander Litvinenko was poisoned when he drank tea containing Polonium-210. He was
Irradiated
Contaminated
Why might irradiation be hazardous?
Irradiated bodies will become radioactive.
Can cause damage to living cells
It kills bacteria and other organisms.
Select the dangers associated with gamma rays.
cancer
mutating DNA
heating of internal organs
sun burn
