| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 44 / 66 (66.7%) |
| Passing score | 52.8 |
| Quiz took | 10 min 07 sec |
| Quiz finished at | 2023-12-06 09:21:08 |
This subatomic particle has a positive charge
A beta particle is
____________ is temporary exposure to radiation.
The gold leaf experiment was conducted by
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
Consider nuclear fission equations. How many products are greenhouse gases?
A _________ can be used to detect nuclear radiation.
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Why was gold used by Rutherford and Marsden?
In nuclear fission, energy is often carried away by ________
Isotopes have different numbers of
Isotopes have the same numbers of
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
______ is the most penetrating
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
An alpha particle is
Which of these was shot at gold film in a famous experiment?
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
In the gold film experiment, most of the alpha particles went straight through because atoms are
A proton has a relative mass of
What is the mass number of a {}_{14}{}^{30}Si atom?
This can be used to kill cancer cells
This can be used in smoke alarms
In nuclear fission, energy is often converted into electricity by
Atoms are mostly
Fission is the ________ of atoms
_______ showed that electrons had to orbit a positive nucleus in energy levels
How many protons does a {}_{14}{}^{30}Si atom have?
The sun makes its energy from nuclear
______ is the least penetrating
How many electrons does a {}_{14}{}^{30}Si atom have?
Fusion is the _________ of atoms
For nuclear fusion, we would require
Radiation dose is commonly measured in
_________ is the rate at which a source of unstable nuclei decays.
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
_______ orbit the nucleus
Which of the following requires thick lead of several metres of concrete to block it?
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
Which of these is not a common source of background radiation
______ is the most ionising
This can be used to make food last longer
A nuclear weapon is made from uncontrolled
Activity is measured in
How many neutrons does a {}_{14}{}^{30}Si atom have?
This subatomic particle has a negligible mass
This can be used to ensure the thickness of paper is correct
Nuclear fission can result in ________ reactions
Gamma radiation is
This subatomic particle has a negative charge
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
What atomic number does a {}_{14}{}^{30}Si atom have?
__________ came up with the plum pudding model for the atom
______ is the least ionising
Which of the following is NOT commonly caused by radiation sickness?
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Which of these is not a common source of background radiation
Atoms become positively charged particles called positive ions when they lose ________
This can be used to sterilise surgical equipment
In the gold leaf experiment, _________ were fired at gold foil
Nuclear _________ is carried out on Earth in power plants
A nuclear weapon is made from nuclear
This subatomic particle has a neutral charge