| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 52 / 66 (78.8%) |
| Passing score | 52.8 |
| Quiz took | 9 min 53 sec |
| Quiz finished at | 2023-05-24 14:46:10 |
Which of the following requires thick lead of several metres of concrete to block it?
This subatomic particle has a negligible mass
What atomic number does a {}_{14}{}^{30}Si atom have?
How many protons does a {}_{14}{}^{30}Si atom have?
In nuclear fission, energy is often carried away by ________
A nuclear weapon is made from nuclear
______ is the most penetrating
A neutron has a relative mass of
In the gold leaf experiment, _________ were fired at gold foil
Radiation dose is commonly measured in
Atoms become positively charged particles called positive ions when they lose ________
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Isotopes have different numbers of
How many neutrons does a {}_{14}{}^{30}Si atom have?
Why was gold used by Rutherford and Marsden?
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Fission is the ________ of atoms
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
A _________ can be used to detect nuclear radiation.
How many electrons does a {}_{14}{}^{30}Si atom have?
____________ is temporary exposure to radiation.
In the gold film experiment, most of the alpha particles went straight through because atoms are
A beta particle is
Nuclear fission can result in ________ reactions
Atoms are mostly
_______ showed that electrons had to orbit a positive nucleus in energy levels
______ is the most ionising
Which of these is not a common source of background radiation
This can be used to kill cancer cells
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
This can be used to ensure the thickness of paper is correct
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
A nuclear weapon is made from uncontrolled
This subatomic particle has a neutral charge
Which of these was shot at gold film in a famous experiment?
This can be used in smoke alarms
A proton has a relative mass of
Which of these is not a common source of background radiation
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
The gold leaf experiment was conducted by
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
An alpha particle is
This can be used to make food last longer
This can be used to sterilise surgical equipment
_________ is the rate at which a source of unstable nuclei decays.
Consider nuclear fission equations. How many products are greenhouse gases?
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
_______ orbit the nucleus
For nuclear fusion, we would require
In nuclear fission, energy is often converted into electricity by
Isotopes have the same numbers of
Activity is measured in
______ is the least penetrating
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?
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
______ is the least ionising
The sun makes its energy from nuclear
Gamma radiation is
This subatomic particle has a positive charge
__________ came up with the plum pudding model for the atom
Fusion is the _________ of atoms
What is the mass number of a {}_{14}{}^{30}Si atom?
Nuclear _________ is carried out on Earth in power plants
This subatomic particle has a negative charge