| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 61 / 66 (92.4%) |
| Passing score | 52.8 |
| Quiz took | 19 min 18 sec |
| Quiz finished at | 2024-04-09 14:11:27 |
A nuclear weapon is made from uncontrolled
What atomic number does a {}_{14}{}^{30}Si atom have?
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
This subatomic particle has a positive charge
Radiation dose is commonly measured in
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Why was gold used by Rutherford and Marsden?
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
Fission is the ________ of atoms
Consider nuclear fission equations. How many products are greenhouse gases?
Atoms become positively charged particles called positive ions when they lose ________
What is the mass number of a {}_{14}{}^{30}Si atom?
Which of the following is NOT commonly caused by radiation sickness?
Isotopes have different numbers of
A beta particle is
_________ is the rate at which a source of unstable nuclei decays.
This can be used to make food last longer
Gamma radiation is
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.
Nuclear fission can result in ________ reactions
______ is the most penetrating
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
Which of these was shot at gold film in a famous experiment?
______ is the least penetrating
This can be used to ensure the thickness of paper is correct
____________ is temporary exposure to radiation.
How many neutrons does a {}_{14}{}^{30}Si atom have?
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
This subatomic particle has a negligible mass
The gold leaf experiment was conducted by
In nuclear fission, energy is often converted into electricity by
Activity is measured in
Which of these is not a common source of background radiation
__________ came up with the plum pudding model for the atom
How many protons does a {}_{14}{}^{30}Si atom have?
Which of these is not a common source of background radiation
Isotopes have the same numbers of
How many electrons does a {}_{14}{}^{30}Si atom have?
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
In the gold leaf experiment, _________ were fired at gold foil
_______ orbit the nucleus
This can be used to sterilise surgical equipment
Atoms are mostly
In nuclear fission, energy is often carried away by ________
This can be used to kill cancer cells
The sun makes its energy from nuclear
_______ showed that electrons had to orbit a positive nucleus in energy levels
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 negative charge
In the gold film experiment, most of the alpha particles went straight through because atoms are
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
This subatomic particle has a neutral charge
______ is the least ionising
______ is the most ionising
Nuclear _________ is carried out on Earth in power plants
An alpha particle is
A proton has a relative mass of
Which of the following requires thick lead of several metres of concrete to block it?
This can be used in smoke alarms
Fusion is the _________ of atoms
A neutron has a relative mass of
For nuclear fusion, we would require
A nuclear weapon is made from nuclear