| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 60 / 66 (90.9%) |
| Passing score | 52.8 |
| Quiz took | 8 min 31 sec |
| Quiz finished at | 2023-03-02 13:39:34 |
Atoms become positively charged particles called positive ions when they lose ________
In the gold leaf experiment, _________ were fired at gold foil
Gamma radiation is
______ is the most penetrating
This subatomic particle has a negative charge
Radiation dose is commonly measured in
Which of these was shot at gold film in a famous experiment?
A neutron has a relative mass of
How many neutrons does a {}_{14}{}^{30}Si atom have?
A beta particle is
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
In the gold film experiment, most of the alpha particles went straight through because atoms are
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
_________ is the rate at which a source of unstable nuclei decays.
______ is the most ionising
Which of these is not a common source of background radiation
Activity is measured in
Isotopes have different numbers of
This can be used to sterilise surgical equipment
_______ orbit the nucleus
______ is the least ionising
In nuclear fission, energy is often carried away by ________
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
This can be used to kill cancer cells
This subatomic particle has a positive charge
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?
A proton has a relative mass of
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
Why was gold used by Rutherford and Marsden?
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
_______ showed that electrons had to orbit a positive nucleus in energy levels
This subatomic particle has a negligible mass
This can be used to make food last longer
In nuclear fission, energy is often converted into electricity by
How many electrons does a {}_{14}{}^{30}Si atom have?
Fission is the ________ of atoms
The sun makes its energy from nuclear
A _________ can be used to detect nuclear radiation.
How many protons does a {}_{14}{}^{30}Si atom have?
Isotopes have the same numbers of
This can be used in smoke alarms
This can be used to ensure the thickness of paper is correct
This subatomic particle has a neutral charge
A nuclear weapon is made from nuclear
__________ 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.
What is the mass number of a {}_{14}{}^{30}Si atom?
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
____________ is temporary exposure to radiation.
Which of the following is NOT commonly caused by radiation sickness?
The gold leaf experiment was conducted by
Which of these is not a common source of background radiation
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
A nuclear weapon is made from uncontrolled
Atoms are mostly
______ is the least penetrating
For nuclear fusion, we would require
An alpha particle is
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Nuclear _________ is carried out on Earth in power plants
Consider nuclear fission equations. How many products are greenhouse gases?
Fusion is the _________ of atoms
Which of the following requires thick lead of several metres of concrete to block it?
What atomic number does a {}_{14}{}^{30}Si atom have?