| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 46 / 66 (69.7%) |
| Passing score | 52.8 |
| Quiz took | 15 min 58 sec |
| Quiz finished at | 2023-12-16 22:03:33 |
How many electrons does a {}_{14}{}^{30}Si atom have?
Why was gold used by Rutherford and Marsden?
For nuclear fusion, we would require
Gamma radiation is
This can be used to ensure the thickness of paper is correct
Which of these is not a common source of background radiation
Activity is measured in
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
A _________ can be used to detect nuclear radiation.
Consider nuclear fission equations. How many products are greenhouse gases?
Atoms become positively charged particles called positive ions when they lose ________
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
_______ showed that electrons had to orbit a positive nucleus in energy levels
In the gold film experiment, most of the alpha particles went straight through because atoms are
Atoms are mostly
A neutron has a relative mass of
______ is the most penetrating
Fission is the ________ of atoms
A beta particle is
How many neutrons does a {}_{14}{}^{30}Si atom have?
This can be used to kill cancer cells
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
_______ orbit the nucleus
In nuclear fission, energy is often carried away by ________
A proton has a relative mass of
Which of these was shot at gold film in a famous experiment?
____________ is temporary exposure to radiation.
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
This subatomic particle has a negligible mass
How many protons does a {}_{14}{}^{30}Si atom have?
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.
Which of the following requires thick lead of several metres of concrete to block it?
______ is the most ionising
This subatomic particle has a neutral charge
Nuclear _________ is carried out on Earth in power plants
______ is the least penetrating
In the gold leaf experiment, _________ were fired at gold foil
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
This subatomic particle has a negative charge
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
The sun makes its energy from nuclear
Isotopes have the same numbers of
The gold leaf experiment was conducted by
A nuclear weapon is made from uncontrolled
This can be used to sterilise surgical equipment
Fusion is the _________ of atoms
An alpha particle is
Which of these is not a common source of background radiation
What is the mass number of a {}_{14}{}^{30}Si atom?
This subatomic particle has a positive charge
Nuclear fission can result in ________ reactions
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
What atomic number does a {}_{14}{}^{30}Si atom have?
This can be used to make food last longer
_________ is the rate at which a source of unstable nuclei decays.
A nuclear weapon is made from nuclear
__________ came up with the plum pudding model for the atom
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
This can be used in smoke alarms
Isotopes have different numbers of
Which of the following is NOT commonly caused by radiation sickness?
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Radiation dose is commonly measured in
In nuclear fission, energy is often converted into electricity by
______ is the least ionising