| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 28 / 66 (42.4%) |
| Passing score | 52.8 |
| Quiz took | 17 min 22 sec |
| Quiz finished at | 2023-11-23 10:19:02 |
How many electrons does a {}_{14}{}^{30}Si atom have?
In the gold film experiment, most of the alpha particles went straight through because atoms are
______ is the least penetrating
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
Which of these was shot at gold film in a famous experiment?
A neutron has a relative mass of
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
Which of the following requires thick lead of several metres of concrete to block it?
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
This can be used to ensure the thickness of paper is correct
This subatomic particle has a negative charge
An alpha particle is
What atomic number does a {}_{14}{}^{30}Si atom have?
Consider nuclear fission equations. How many products are greenhouse gases?
The sun makes its energy from nuclear
Atoms become positively charged particles called positive ions when they lose ________
In nuclear fission, energy is often converted into electricity by
____________ is temporary exposure to radiation.
In nuclear fission, energy is often carried away 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?
_______ showed that electrons had to orbit a positive nucleus in energy levels
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
Nuclear _________ is carried out on Earth in power plants
This can be used to make food last longer
A proton has a relative mass of
This subatomic particle has a neutral charge
Which of these is not a common source of background radiation
Isotopes have different numbers of
How many neutrons does a {}_{14}{}^{30}Si atom have?
Fission is the ________ of atoms
This can be used to kill cancer cells
_______ orbit the nucleus
The gold leaf experiment was conducted by
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
A nuclear weapon is made from nuclear
_________ is the rate at which a source of unstable nuclei decays.
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
__________ came up with the plum pudding model for the atom
A beta particle is
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
Isotopes have the same numbers of
This can be used to sterilise surgical equipment
For nuclear fusion, we would require
This subatomic particle has a negligible mass
______ is the least ionising
How many protons does a {}_{14}{}^{30}Si atom have?
In the gold leaf experiment, _________ were fired at gold foil
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
Radiation dose is commonly measured in
A nuclear weapon is made from uncontrolled
______ is the most penetrating
This subatomic particle has a positive charge
______ is the most ionising
A _________ can be used to detect nuclear radiation.
Atoms are mostly
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Activity is measured in
Fusion is the _________ of atoms
Which of the following is NOT commonly caused by radiation sickness?
This can be used in smoke alarms
Gamma radiation is
Nuclear fission can result in ________ reactions
_______ 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?
Why was gold used by Rutherford and Marsden?