| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 62 / 66 (93.9%) |
| Passing score | 52.8 |
| Quiz took | 39 min 31 sec |
| Quiz finished at | 2024-11-16 22:56:01 |
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
In nuclear fission, energy is often carried away by ________
Atoms are mostly
Consider nuclear fission equations. How many products are greenhouse gases?
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
Which of the following requires thick lead of several metres of concrete to block it?
Isotopes have the same numbers of
This can be used to ensure the thickness of paper is correct
______ is the most ionising
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
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 positive charge
Which of these is not a common source of background radiation
_________ is the rate at which a source of unstable nuclei decays.
In the gold leaf experiment, _________ were fired at gold foil
Which of these was shot at gold film in a famous experiment?
Nuclear _________ is carried out on Earth in power plants
This can be used to make food last longer
This subatomic particle has a negative charge
In the gold film experiment, most of the alpha particles went straight through because atoms are
A proton has a relative mass of
This can be used to kill cancer cells
_______ showed that electrons had to orbit a positive nucleus in energy levels
An alpha particle is
Radiation dose is commonly measured in
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
______ is the most penetrating
A _________ can be used to detect nuclear radiation.
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
This subatomic particle has a negligible mass
The gold leaf experiment was conducted by
This subatomic particle has a neutral charge
A beta particle is
Activity is measured in
Nuclear fission can result in ________ reactions
Why was gold used by Rutherford and Marsden?
____________ is temporary exposure to radiation.
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
Isotopes have different numbers of
This can be used in smoke alarms
Which of these is not a common source of background radiation
In nuclear fission, energy is often converted into electricity by
______ is the least penetrating
_______ orbit the nucleus
How many electrons does a {}_{14}{}^{30}Si atom have?
This can be used to sterilise surgical equipment
Fusion is the _________ of atoms
__________ came up with the plum pudding model for the atom
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Atoms become positively charged particles called positive ions when they lose ________
The sun makes its energy from nuclear
How many neutrons does a {}_{14}{}^{30}Si atom have?
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Which of the following is NOT commonly caused by radiation sickness?
What is the mass number of a {}_{14}{}^{30}Si atom?
A neutron has a relative mass of
______ is the least ionising
For nuclear fusion, we would require
Gamma radiation is
Fission is the ________ of atoms
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
What atomic number does a {}_{14}{}^{30}Si atom have?
A nuclear weapon is made from nuclear
A nuclear weapon is made from uncontrolled
How many protons does a {}_{14}{}^{30}Si atom have?