Atoms, Elements and Compounds Flashcards
(4 cards)
1
Q
Atoms
A
- smallest part of an element that can exist
- radius of 0.1 nanometres
2
Q
Atoms - Isotopes
A
- Calculated by using masses and abundances of each isotope
- relative atomic mass
- Same numbers of protons, different numbers of neutrons
3
Q
Elements
A
made up of the same atoms with the same atomic number
4
Q
Compounds
A
- contains 2 or more elements
- formed by chemical reactions
