Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
Nucleus
|
The tiny positively charged centre of an atom composed of protons and neutrons
|
|
Nucleons
|
Protons and neutrons - the sub-atomic particles found in the nuclei of atoms
|
|
Strong nuclear force
|
The force that holds protons and neutrons together within the nucleus of an atom
|
|
Electrostatic forces
|
the forces or attraction and repulsion between electrically charged particles
|
|
Proton number
|
The number of protons in the nucleus of an atom, same as the atomic number
|
|
Isotopes
|
Atoms with the same number of protons but different numbers of neutrons
|
|
Relative atomic mass
|
Ar = Average mass of an atom/ 1/12th the mass of 1 atom of carbon 12
|
|
Atomic orbital
|
A region of space around an atomic nucleus where there is a high probability of finding an electron
|
|
ionisation energy
|
The energy required to remove a mole of electrons from a mole of isolated gaseous atoms or ions.
|