| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 65 / 66 (98.5%) |
| Passing score | 52.8 |
| Quiz took | 7 min 23 sec |
| Quiz finished at | 2023-03-15 17:48:43 |
How many electrons does a {}_{14}{}^{30}Si atom have?
Radiation dose is commonly measured in
Isotopes have different numbers of
Gamma radiation is
This subatomic particle has a negligible mass
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
This subatomic particle has a negative charge
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
The sun makes its energy from nuclear
In nuclear fission, energy is often carried away by ________
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
Which of these is not a common source of background radiation
What atomic number does a {}_{14}{}^{30}Si atom have?
In nuclear fission, energy is often converted into electricity by
The gold leaf experiment was conducted by
______ is the least ionising
Which of these is not a common source of background radiation
In the gold film experiment, most of the alpha particles went straight through because atoms are
A nuclear weapon is made from nuclear
Fusion is the _________ of atoms
Which of these was shot at gold film in a famous experiment?
Fission is the ________ of atoms
A neutron has a relative mass of
This can be used to make food last longer
_______ showed that electrons had to orbit a positive nucleus in energy levels
A _________ can be used to detect nuclear radiation.
Which of the following requires thick lead of several metres of concrete to block it?
______ is the most penetrating
Consider nuclear fission equations. How many products are greenhouse gases?
A beta particle is
______ is the least penetrating
What is the mass number of a {}_{14}{}^{30}Si atom?
This subatomic particle has a neutral charge
This can be used to kill cancer cells
For nuclear fusion, we would require
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
A nuclear weapon is made from uncontrolled
__________ came up with the plum pudding model for the atom
This can be used to ensure the thickness of paper is correct
_______ orbit the nucleus
Which of the following is NOT commonly caused by radiation sickness?
How many protons does a {}_{14}{}^{30}Si atom have?
______ is the most ionising
This can be used in smoke alarms
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Nuclear fission can result in ________ reactions
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Activity is measured in
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
How many neutrons does a {}_{14}{}^{30}Si atom have?
Nuclear _________ is carried out on Earth in power plants
Why was gold used by Rutherford and Marsden?
An alpha particle is
Isotopes have the same numbers of
In the gold leaf experiment, _________ were fired at gold foil
This can be used to sterilise surgical equipment
A proton has a relative mass of
____________ is temporary exposure to radiation.
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
Atoms are mostly
Atoms become positively charged particles called positive ions when they lose ________
This subatomic particle has a positive charge
_________ is the rate at which a source of unstable nuclei decays.