| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 52 / 66 (78.8%) |
| Passing score | 52.8 |
| Quiz took | 4 min 04 sec |
| Quiz finished at | 2024-11-23 14:36:04 |
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 sterilise surgical equipment
Atoms become positively charged particles called positive ions when they lose ________
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
______ is the most penetrating
Nuclear fission can result in ________ reactions
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
A nuclear weapon is made from uncontrolled
Which of these is not a common source of background radiation
Why was gold used by Rutherford and Marsden?
A beta particle is
Gamma radiation is
How many electrons does a {}_{14}{}^{30}Si atom have?
Fission is the ________ of atoms
What is the mass number of a {}_{14}{}^{30}Si atom?
In the gold leaf experiment, _________ were fired at gold foil
Consider nuclear fission equations. How many products are greenhouse gases?
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Which of the following requires thick lead of several metres of concrete to block it?
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
This can be used in smoke alarms
How many neutrons does a {}_{14}{}^{30}Si atom have?
Radiation dose is commonly measured in
What atomic number does a {}_{14}{}^{30}Si atom have?
_________ is the rate at which a source of unstable nuclei decays.
The gold leaf experiment was conducted by
Activity is measured in
In nuclear fission, energy is often carried away by ________
A nuclear weapon is made from nuclear
The sun makes its energy from nuclear
This can be used to make food last longer
Nuclear _________ is carried out on Earth in power plants
This can be used to ensure the thickness of paper is correct
How many protons does a {}_{14}{}^{30}Si atom have?
______ is the least penetrating
______ is the most ionising
A neutron has a relative mass of
_______ orbit the nucleus
This can be used to kill cancer cells
Which of these was shot at gold film in a famous experiment?
____________ is temporary exposure to radiation.
_______ 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.
______ is the least ionising
In nuclear fission, energy is often converted into electricity by
This subatomic particle has a negative charge
In the gold film experiment, most of the alpha particles went straight through because atoms are
This subatomic particle has a negligible mass
Isotopes have the same numbers of
This subatomic particle has a positive charge
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
Atoms are mostly
For nuclear fusion, we would require
Isotopes have different numbers of
An alpha particle is
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
__________ came up with the plum pudding model for the atom
A _________ can be used to detect nuclear radiation.
Which of the following is NOT commonly caused by radiation sickness?
Fusion is the _________ of atoms
A proton has a relative mass of
Which of these is not a common source of background radiation
This subatomic particle has a neutral charge
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.