| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 56 / 66 (84.8%) |
| Passing score | 52.8 |
| Quiz took | 11 min 12 sec |
| Quiz finished at | 2023-05-26 09:34:36 |
Isotopes have different numbers of
A nuclear weapon is made from nuclear
The sun makes its energy from nuclear
A nuclear weapon is made from uncontrolled
______ is the least ionising
Nuclear _________ is carried out on Earth in power plants
The gold leaf experiment was conducted by
Which of the following requires thick lead of several metres of concrete to block it?
____________ is temporary exposure to radiation.
This can be used in smoke alarms
_________ is the rate at which a source of unstable nuclei decays.
______ is the most ionising
A _________ can be used to detect nuclear radiation.
__________ came up with the plum pudding model for the atom
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
What atomic number does a {}_{14}{}^{30}Si atom have?
How many electrons does a {}_{14}{}^{30}Si atom have?
______ is the most penetrating
This can be used to kill cancer cells
Atoms are mostly
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
This subatomic particle has a negative charge
Atoms become positively charged particles called positive ions when they lose ________
Gamma radiation is
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
_________ 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
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 neutron has a relative mass of
For nuclear fusion, we would require
Isotopes have the same numbers of
Which of these is not a common source of background radiation
Nuclear fission can result in ________ reactions
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
This subatomic particle has a positive charge
In the gold leaf experiment, _________ were fired at gold foil
This can be used to make food last longer
Which of these is not a common source of background radiation
This subatomic particle has a negligible mass
This subatomic particle has a neutral charge
This can be used to sterilise surgical equipment
Consider nuclear fission equations. How many products are greenhouse gases?
Activity is measured in
Why was gold used by Rutherford and Marsden?
______ is the least penetrating
Fusion is the _________ of atoms
Which of the following is NOT commonly caused by radiation sickness?
Which of these was shot at gold film in a famous experiment?
How many neutrons does a {}_{14}{}^{30}Si atom have?
An alpha particle is
_______ orbit the nucleus
A beta particle is
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
A proton has a relative mass of
_______ showed that electrons had to orbit a positive nucleus in energy levels
This can be used to ensure the thickness of paper is correct
What is the mass number of a {}_{14}{}^{30}Si atom?
In nuclear fission, energy is often converted into electricity by
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Radiation dose is commonly measured in
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
How many protons does a {}_{14}{}^{30}Si atom have?
In the gold film experiment, most of the alpha particles went straight through because atoms are
In nuclear fission, energy is often carried away by ________