| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 63 / 66 (95.5%) |
| Passing score | 52.8 |
| Quiz took | 6 min 20 sec |
| Quiz finished at | 2025-01-19 15:56:47 |
______ is the most penetrating
In the gold film experiment, most of the alpha particles went straight through because atoms are
__________ came up with the plum pudding model for the atom
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
_________ is the rate at which a source of unstable nuclei decays.
Isotopes have different numbers of
______ is the most ionising
This can be used to ensure the thickness of paper is correct
For nuclear fusion, we would require
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
This subatomic particle has a positive charge
In nuclear fission, energy is often converted into electricity by
In nuclear fission, energy is often carried away by ________
Activity is measured in
Atoms are mostly
In the gold leaf experiment, _________ were fired at gold foil
Nuclear _________ is carried out on Earth in power plants
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
This can be used to make food last longer
What is the mass number of a {}_{14}{}^{30}Si atom?
Atoms become positively charged particles called positive ions when they lose ________
Nuclear fission can result in ________ reactions
Which of these was shot at gold film in a famous experiment?
Which of the following requires thick lead of several metres of concrete to block it?
Fusion is the _________ of atoms
Consider nuclear fission equations. How many products are greenhouse gases?
This subatomic particle has a neutral charge
The gold leaf experiment was conducted by
Which of these is not a common source of background radiation
This can be used to kill cancer cells
A neutron has a relative mass of
How many neutrons does a {}_{14}{}^{30}Si atom have?
Fission is the ________ of atoms
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
A nuclear weapon is made from nuclear
Why was gold used by Rutherford and Marsden?
This can be used to sterilise surgical equipment
Radiation dose is commonly measured in
How many electrons does a {}_{14}{}^{30}Si atom have?
What atomic number does a {}_{14}{}^{30}Si atom have?
The sun makes its energy from nuclear
Gamma radiation is
How many protons does a {}_{14}{}^{30}Si atom have?
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
A _________ can be used to detect nuclear radiation.
An alpha particle is
A proton has a relative mass of
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
This subatomic particle has a negative charge
A beta particle is
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
_______ showed that electrons had to orbit a positive nucleus in energy levels
_______ orbit the nucleus
____________ 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.
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
____________ is temporary exposure to radiation.
Which of the following is NOT commonly caused by radiation sickness?
This subatomic particle has a negligible mass
Isotopes have the same numbers of
A nuclear weapon is made from uncontrolled
______ is the least ionising
______ is the least penetrating
Which of these is not a common source of background radiation
This can be used in smoke alarms