| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 56 / 66 (84.8%) |
| Passing score | 52.8 |
| Quiz took | 7 min 24 sec |
| Quiz finished at | 2023-12-16 22:11:58 |
A neutron has a relative mass of
_________ is the rate at which a source of unstable nuclei decays.
Isotopes have different numbers of
A nuclear weapon is made from uncontrolled
Isotopes have the same numbers of
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
Why was gold used by Rutherford and Marsden?
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
______ is the least ionising
__________ came up with the plum pudding model for the atom
_______ showed that electrons had to orbit a positive nucleus in energy levels
Which of the following is NOT commonly caused by radiation sickness?
Radiation dose is commonly measured in
How many protons 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?
How many electrons does a {}_{14}{}^{30}Si atom have?
______ is the most ionising
For nuclear fusion, we would require
This can be used to ensure the thickness of paper is correct
This can be used to make food last longer
Which of the following requires thick lead of several metres of concrete to block it?
A nuclear weapon is made from nuclear
An alpha particle is
In the gold film experiment, most of the alpha particles went straight through because atoms are
In the gold leaf experiment, _________ were fired at gold foil
Atoms become positively charged particles called positive ions when they lose ________
Activity is measured in
____________ is temporary exposure to radiation.
Nuclear _________ is carried out on Earth in power plants
Which of these is not a common source of background radiation
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
Gamma radiation is
This can be used to kill cancer cells
This subatomic particle has a neutral charge
Which of these was shot at gold film in a famous experiment?
This subatomic particle has a negative charge
This subatomic particle has a negligible mass
______ is the least penetrating
Consider nuclear fission equations. How many products are greenhouse gases?
The gold leaf experiment was conducted by
What atomic number does a {}_{14}{}^{30}Si atom have?
Which of these is not a common source of background radiation
Atoms are mostly
What is the mass number of a {}_{14}{}^{30}Si atom?
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Nuclear fission can result in ________ reactions
Fission is the ________ of atoms
In nuclear fission, energy is often converted into electricity by
_______ orbit the nucleus
A beta particle is
A proton has a relative mass of
This can be used in smoke alarms
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
A _________ can be used to detect nuclear radiation.
This can be used to sterilise surgical equipment
This subatomic particle has a positive charge
Fusion is the _________ of atoms
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
In nuclear fission, energy is often carried away by ________
The sun makes its energy from nuclear
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
______ is the most penetrating
How many neutrons does a {}_{14}{}^{30}Si atom have?