Atoms, Elements, Compounds
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
N
Neutral atoman atom with equal numbers of protons and electrons. | |
Neutrona neutral particle found in the nucleus. | |
Non-metalAn element that is generally a poor conductor of heat and electricity and is often dull and brittle if solid. | |
Nuclear notationa standard way of writing an atom using its mass number, atomic number, and chemical symbol. | |
Nucleusthe tiny, dense centre of an atom containing protons and neutrons. | |