| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 63 / 66 (95.5%) |
| Passing score | 52.8 |
| Quiz took | 4 min 59 sec |
| Quiz finished at | 2023-12-07 09:01:40 |
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
Which of these is not a common source of background radiation
Activity is measured in
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
An alpha particle is
This subatomic particle has a negative charge
Fission is the ________ of atoms
Nuclear fission can result in ________ reactions
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Which of these is not a common source of background radiation
How many protons does a {}_{14}{}^{30}Si atom have?
The gold leaf experiment was conducted by
A beta particle is
In the gold film experiment, most of the alpha particles went straight through because atoms are
This can be used to sterilise surgical equipment
Atoms are mostly
In nuclear fission, energy is often converted into electricity by
Gamma radiation is
What is the mass number of a {}_{14}{}^{30}Si atom?
______ is the least ionising
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
How many electrons does a {}_{14}{}^{30}Si atom have?
This can be used to ensure the thickness of paper is correct
A nuclear weapon is made from nuclear
Fusion is the _________ of atoms
This can be used in smoke alarms
_______ showed that electrons had to orbit a positive nucleus in energy levels
Which of these was shot at gold film in a famous experiment?
A nuclear weapon is made from uncontrolled
Why was gold used by Rutherford and Marsden?
This subatomic particle has a positive charge
In the gold leaf experiment, _________ were fired at gold foil
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Atoms become positively charged particles called positive ions when they lose ________
For nuclear fusion, we would require
______ is the most ionising
In nuclear fission, energy is often carried away by ________
_______ orbit the nucleus
This subatomic particle has a neutral charge
A _________ can be used to detect nuclear radiation.
____________ is temporary exposure to radiation.
Radiation dose is commonly measured in
How many neutrons does a {}_{14}{}^{30}Si atom have?
Which of the following requires thick lead of several metres of concrete to block it?
Isotopes have the same numbers of
Consider nuclear fission equations. How many products are greenhouse gases?
This can be used to make food last longer
The sun makes its energy from nuclear
Isotopes have different numbers of
A proton has a relative mass of
This can be used to kill cancer cells
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
A neutron has a relative mass of
_________ is the rate at which a source of unstable nuclei decays.
______ is the most penetrating
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
______ is the least penetrating
Nuclear _________ is carried out on Earth in power plants
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
This subatomic particle has a negligible mass
Which of the following is NOT commonly caused by radiation sickness?
__________ came up with the plum pudding model for the atom
What atomic number does a {}_{14}{}^{30}Si atom have?