| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | PASSED |
| Score | 58 / 66 (87.9%) |
| Passing score | 52.8 |
| Quiz took | 7 min 51 sec |
| Quiz finished at | 2023-05-24 14:54:33 |
In nuclear fission, energy is often carried away by ________
The gold leaf experiment was conducted by
An alpha particle is
Atoms become positively charged particles called positive ions when they lose ________
A nuclear weapon is made from nuclear
______ is the least ionising
______ is the least penetrating
How many protons does a {}_{14}{}^{30}Si atom have?
_______ orbit the nucleus
This can be used to ensure the thickness of paper is correct
How many electrons does a {}_{14}{}^{30}Si atom have?
For nuclear fusion, we would require
____________ is temporary exposure to radiation.
Isotopes have different numbers of
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
Gamma radiation is
_________ is the rate at which a source of unstable nuclei decays.
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
In the gold film experiment, most of the alpha particles went straight through because atoms are
A proton has a relative mass of
_______ showed that electrons had to orbit a positive nucleus in energy levels
A neutron has a relative mass of
A nuclear weapon is made from uncontrolled
How many neutrons does a {}_{14}{}^{30}Si atom have?
Which of the following requires thick lead of several metres of concrete to block it?
Atoms are mostly
______ is the most ionising
Which of these is not a common source of background radiation
This can be used to sterilise surgical equipment
Nuclear fission can result in ________ reactions
Fission is the ________ of atoms
This can be used to make food last longer
Which of these was shot at gold film in a famous experiment?
This subatomic particle has a negative charge
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
A beta particle is
Nuclear _________ is carried out on Earth in power plants
This subatomic particle has a neutral charge
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
What is the mass number of a {}_{14}{}^{30}Si atom?
Consider nuclear fission equations. How many products are greenhouse gases?
This can be used to kill cancer cells
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Radiation dose is commonly measured in
__________ came up with the plum pudding model for the atom
In the gold leaf experiment, _________ were fired at gold foil
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
Fusion is the _________ of atoms
Why was gold used by Rutherford and Marsden?
This subatomic particle has a negligible mass
Isotopes have the same numbers of
The sun makes its energy from nuclear
Which of the following is NOT commonly caused by radiation sickness?
A _________ can be used to detect nuclear radiation.
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
This can be used in smoke alarms
In nuclear fission, energy is often converted into electricity by
Which of these is not a common source of background radiation
This subatomic particle has a positive charge
______ is the most penetrating
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
What atomic number does a {}_{14}{}^{30}Si atom have?
Activity is measured in
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom