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Chemistry
Mass number and isotopes: Mass number (A) and atomic (proton) number (Z).
AQAA-Level
7405
Chemistry
Mass spectrometry can be used to determine relative molecular mass.
AQAA-Level
7405
Chemistry
Mass spectrometry can be used to identify elements.
AQAA-Level
7405
Chemistry
Students should be able to: determine the number of fundamental particles…
AQAA-Level
7405
Chemistry
Students should be able to: interpret simple mass spectra of elements…
AQAA-Level
7405
Chemistry
The mass spectrometer gives accurate information about relative isotopic…
AQAA-Level
7405
Chemistry
The principles of a simple time of flight (TOF) mass spectrometer, limited…
AQAA-Level
7405
Physics
All atoms of a particular element have the same number of protons.
AQAGCSE
8463
Combined Science
All atoms of a particular element have the same number of protons. The…
AQAGCSE
8464
Combined Science
Atoms can be represented as shown in this example:
AQAGCSE
8464
Physics
Atoms can be represented as shown in this example: Atoms of the same…
AQAGCSE
8463
Combined Science
Atoms of the same element can have different numbers of neutrons; these…
AQAGCSE
8464
Physics
Atoms turn into positive ions if they lose one or more outer electron(s).
AQAGCSE
8463
Combined Science
Atoms turn into positive ions if they lose one or more outer electron(s).
AQAGCSE
8464
Physics
In an atom the number of electrons is equal to the number of protons in…
AQAGCSE
8463
Combined Science
In an atom the number of electrons is equal to the number of protons in…
AQAGCSE
8464
Physics
Students should be able to relate differences between isotopes to…
AQAGCSE
8463
Combined Science
Students should be able to relate differences between isotopes to…
AQAGCSE
8464
Physics
The number of protons in an atom of an element is called its atomic number.
AQAGCSE
8463
Combined Science
The total number of protons and neutrons in an atom is called its mass…
AQAGCSE
8464
Physics
The total number of protons and neutrons in an atom is called its mass…
AQAGCSE
8463
Chemistry
Mass spectrometry can be used to determine the molecular formula of a…
AQAA-Level
7405
Chemistry
Students should be able to: use precise atomic masses and the precise…
AQAA-Level
7405
Biology
Mass Transport in Animals
AQAA-Level
Master the fundamental principles of how energy enters ecosystems through photosynthesis and flows through food chains. This crucial A-Level topic links cellular biochemistry with global ecology, forming the backbone of your understanding of life processes.
Biology
Many animals are adapted to their environment by possessing different…
AQAA-Level
7402
Biology
Names are required only of the coronary arteries and of the blood vessels…
AQAA-Level
7402
Biology
Pressure and volume changes and associated valve movements during the…
AQAA-Level
7402
Biology
Required practical 5: Dissection of animal or plant gas exchange system or…
AQAA-Level
7402
Biology
Students should be able to: analyse and interpret data relating to…
AQAA-Level
7402
Biology
The cooperative nature of oxygen binding to show that the change in shape…
AQAA-Level
7402
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