| Quiz | Developing the model of the atom |
|---|---|
| Name | |
| Result | FAILED |
| Score | 51 / 66 (77.3%) |
| Passing score | 52.8 |
| Quiz took | 1 h 39 min 07 sec |
| Quiz finished at | 2024-04-03 16:06:55 |
Fission is the ________ of atoms
__________ came up with the plum pudding model for the atom
Why was gold used by Rutherford and Marsden?
What is the mass number of a {}_{14}{}^{30}Si atom?
The sun makes its energy from nuclear
An electron will move from a lower to a higher orbit, if it ______ electromagnetic radiation
In an atom the number of electrons is equal to the number of protons. There is _______ net charge on the atom.
Fusion is the _________ of atoms
_________ is the rate at which a source of unstable nuclei decays.
Which of the following is NOT commonly caused by radiation sickness?
A neutron has a relative mass of
_______ showed that electrons had to orbit a positive nucleus in energy levels
______ is the most ionising
A nuclear weapon is made from nuclear
Nuclear fission can result in ________ reactions
In the gold leaf experiment, _________ were fired at gold foil
Atoms become positively charged particles called positive ions when they lose ________
______ is the least ionising
Which of these was shot at gold film in a famous experiment?
This subatomic particle has a negligible mass
This subatomic particle has a negative charge
What atomic number does a {}_{14}{}^{30}Si atom have?
A proton has a relative mass of
A nuclear weapon is made from uncontrolled
Isotopes have different numbers of
High doses of radiation can kills cells, so radiation can be used to kill cancer cells. This treatment is known as
The gold leaf experiment was conducted by
Nuclear _________ is carried out on Earth in power plants
How many electrons does a {}_{14}{}^{30}Si atom have?
This can be used to ensure the thickness of paper is correct
____________ is temporary exposure to radiation.
Which of these is not a common source of background radiation
______ is the least penetrating
Radiation dose is commonly measured in
This can be used to kill cancer cells
This can be used in smoke alarms
This subatomic particle has a neutral charge
____________ occurs when radioactive atoms get stuck onto objects or living organisms.
For nuclear fusion, we would require
An alpha particle is
Consider nuclear fission equations. How many products are greenhouse gases?
_______ orbit the nucleus
_________ discovered that neutral particles called neutrons where found in the nucleus of an atom
{}_{}{}^{131}I \to {}_{54}{}^{131}Xe + {}_{-1}{}^{0}e What is the missing atomic number in the equation above?
In nuclear fission, energy is often carried away by ________
This can be used to sterilise surgical equipment
Activity is measured in
In nuclear fission, energy is often converted into electricity by
Which of the following requires thick lead of several metres of concrete to block it?
Isotopes have the same numbers of
This can be used to make food last longer
Atoms are mostly
{}_{88}{}^{222}Ra \to {}_{86}{}^{}Rn + {}_{2}{}^{4}He What is the missing mass number in the equation above?
Radioactive _________ is the unwanted presence of radioactive material on or inside other materials or human bodies.
Which of these is not a common source of background radiation
A beta particle is
A _________ can be used to detect nuclear radiation.
An electron will move from a higher to a lower orbit, if it ______ electromagnetic radiation
Gamma radiation is
_______ is ionising radiation from an external radioactive source travelling to the body – it is not breathed in, eaten or drunk.
In the gold film experiment, most of the alpha particles went straight through because atoms are
A mass has a half life of 20 minutes. Its initial count is 200 Bq. What is its count after one hour?
______ is the most penetrating
How many neutrons does a {}_{14}{}^{30}Si atom have?
This subatomic particle has a positive charge
How many protons does a {}_{14}{}^{30}Si atom have?