Flashcards
Chemistry
Flashcards do conjunto (8)
- 1How to work out number of neutrons?Mass number - atomic number
- 2When two elements react it forms a....Compound
- 3What are the main four separation techniques?Filtration, evaporation, crystallisation and distillation
- 4Why did Mendeleev leave gaps in the periodic tableHe knew many elements hadn’t been discovered yet so left gaps
- 5What is the charge of a proton?Positive
- 6What is the charge of a neutron?Neutral
- 7What is the charge of an electron?Negative
- 8How are the group number and the number of electrons in the outer shell of an element related?The group the element is in is the amount of electrons it has on its outer shell
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- FlashCards sobre Chemistry , criado por Jamie Slater em 11-09-2018.
- Criado por
- Jamie Slater
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