| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 59 / 66 (89.4%) |
| Passing score | 52.8 |
| Quiz took | 7 min 43 sec |
| Quiz finished at | 2024-04-03 17:00:22 |
Isotopes have different numbers of
Radiation dose is commonly measured in
______ is the most penetrating
______ is the least ionising
In nuclear fission, energy is often carried away by ________
____________ is temporary exposure to radiation.
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Which of these was shot at gold film in a famous experiment?
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
How many electrons does a {}_{14}{}^{30}Si atom have?
Atoms become positively charged particles called positive ions when they lose ________
In the gold film experiment, most of the alpha particles went straight through because atoms are
Isotopes have the same numbers of
For nuclear fusion, we would require
______ is the least penetrating
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
In the gold leaf experiment, _________ were fired at gold foil
The sun makes its energy from nuclear
A nuclear weapon is made from uncontrolled
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
Gamma radiation is
In nuclear fission, energy is often converted into electricity by
_______ orbit the nucleus
Fission is the ________ of atoms
This can be used to make food last longer
Why was gold used by Rutherford and Marsden?
This subatomic particle has a negligible mass
______ is the most ionising
This can be used to sterilise surgical equipment
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?
Nuclear fission can result in ________ reactions
A _________ can be used to detect nuclear radiation.
Which of these is not a common source of background radiation
A nuclear weapon is made from nuclear
The gold leaf experiment was conducted by
Which of these is not a common source of background radiation
This can be used in smoke alarms
This subatomic particle has a positive charge
How many protons does a {}_{14}{}^{30}Si atom have?
Consider nuclear fission equations. How many products are greenhouse gases?
Which of the following is NOT commonly caused by radiation sickness?
Nuclear _________ is carried out on Earth in power plants
A beta particle is
Which of the following requires thick lead of several metres of concrete to block it?
A neutron has a relative mass of
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
An alpha particle is
This can be used to kill cancer cells
This subatomic particle has a neutral charge
Fusion is the _________ of atoms
__________ 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.
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
_______ showed that electrons had to orbit a positive nucleus in energy levels
Atoms are mostly
This can be used to ensure the thickness of paper is correct
_________ is the rate at which a source of unstable nuclei decays.
How many neutrons does a {}_{14}{}^{30}Si atom have?
Activity is measured in
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
What is the mass number of a {}_{14}{}^{30}Si atom?
A proton has a relative mass of
What atomic number does a {}_{14}{}^{30}Si atom have?