| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 60 / 66 (90.9%) |
| Passing score | 52.8 |
| Quiz took | 11 min 06 sec |
| Quiz finished at | 2023-09-22 15:24:12 |
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
Isotopes have the same numbers of
Nuclear fission can result in ________ reactions
How many neutrons does a {}_{14}{}^{30}Si atom have?
This can be used to kill cancer cells
Which of the following is NOT commonly caused by radiation sickness?
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
____________ is temporary exposure to radiation.
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Fusion is the _________ of atoms
This subatomic particle has a negative charge
The gold leaf experiment was conducted by
Atoms are mostly
An alpha particle is
How many electrons does a {}_{14}{}^{30}Si atom have?
__________ came up with the plum pudding model for the atom
Which of these is not a common source of background radiation
The sun makes its energy from nuclear
______ is the least penetrating
In nuclear fission, energy is often carried away by ________
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
A neutron has a relative mass of
Consider nuclear fission equations. How many products are greenhouse gases?
In nuclear fission, energy is often converted into electricity by
Which of these was shot at gold film in a famous experiment?
What is the mass number of a {}_{14}{}^{30}Si atom?
This can be used to ensure the thickness of paper is correct
What atomic number does a {}_{14}{}^{30}Si atom have?
Atoms become positively charged particles called positive ions when they lose ________
Which of the following requires thick lead of several metres of concrete to block it?
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
Why was gold used by Rutherford and Marsden?
This subatomic particle has a neutral charge
A beta particle is
A _________ can be used to detect nuclear radiation.
A nuclear weapon is made from nuclear
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
A nuclear weapon is made from uncontrolled
_________ is the rate at which a source of unstable nuclei decays.
For nuclear fusion, we would require
Nuclear _________ is carried out on Earth in power plants
This subatomic particle has a positive charge
This can be used to make food last longer
This can be used in smoke alarms
How many protons does a {}_{14}{}^{30}Si atom have?
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Which of these is not a common source of background radiation
This subatomic particle has a negligible mass
A proton has a relative mass of
Activity is measured in
In the gold leaf experiment, _________ were fired at gold foil
_______ showed that electrons had to orbit a positive nucleus in energy levels
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
_______ orbit the nucleus
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
______ is the least ionising
Fission is the ________ of atoms
In the gold film experiment, most of the alpha particles went straight through because atoms are
______ is the most ionising
Isotopes have different numbers of
This can be used to sterilise surgical equipment
Gamma radiation is
Radiation dose is commonly measured in
______ is the most penetrating
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as