| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 45 / 66 (68.2%) |
| Passing score | 52.8 |
| Quiz took | 11 min 55 sec |
| Quiz finished at | 2022-05-28 17:02:22 |
This can be used to kill cancer cells
This can be used in smoke alarms
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Atoms become positively charged particles called positive ions when they lose ________
Atoms are mostly
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
Which of the following is NOT commonly caused by radiation sickness?
A nuclear weapon is made from uncontrolled
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
____________ is temporary exposure to radiation.
Fusion is the _________ of atoms
Nuclear fission can result in ________ reactions
This can be used to sterilise surgical equipment
Isotopes have the same numbers of
In nuclear fission, energy is often converted into electricity by
_______ showed that electrons had to orbit a positive nucleus in energy levels
______ is the least ionising
Gamma radiation is
Nuclear _________ is carried out on Earth in power plants
______ is the least penetrating
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
The sun makes its energy from nuclear
This subatomic particle has a neutral charge
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
This can be used to make food last longer
Which of these is not a common source of background radiation
_________ is the rate at which a source of unstable nuclei decays.
How many neutrons does a {}_{14}{}^{30}Si atom have?
A neutron has a relative mass of
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.
Why was gold used by Rutherford and Marsden?
Which of the following requires thick lead of several metres of concrete to block it?
How many protons does a {}_{14}{}^{30}Si atom have?
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
This subatomic particle has a positive charge
Consider nuclear fission equations. How many products are greenhouse gases?
A nuclear weapon is made from nuclear
In the gold film experiment, most of the alpha particles went straight through because atoms are
A proton has a relative mass of
Which of these is not a common source of background radiation
______ is the most ionising
Isotopes have different numbers of
In nuclear fission, energy is often carried away by ________
_______ orbit the nucleus
An electron will move from a lower to a higher 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.
Fission is the ________ of atoms
A _________ can be used to detect nuclear radiation.
This subatomic particle has a negative charge
This subatomic particle has a negligible mass
Activity is measured in
This can be used to ensure the thickness of paper is correct
______ is the most penetrating
For nuclear fusion, we would require
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
How many electrons does a {}_{14}{}^{30}Si atom have?
In the gold leaf experiment, _________ were fired at gold foil
A beta particle is
What is the mass number of a {}_{14}{}^{30}Si atom?
__________ came up with the plum pudding model for the atom
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
The gold leaf experiment was conducted by
Radiation dose is commonly measured in
An alpha particle is
What atomic number does a {}_{14}{}^{30}Si atom have?