Quiz

Chemistry

rosie.clarke123 5 perguntas

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Perguntas do quiz (5)

1[blank_start]An atom[blank_end] is the smalles unit of an element eg H (not H2)
1. AAn atom
2[blank_start]An element[blank_end] is a substance which contains only one type of atom
1. AAn element
3[blank_start]A molecule[blank_end] is a group of atoms joined by covalent bonds, eg H2 and H20
1. AA molecule
4[blank_start]A compound[blank_end] is a substance that contins more than one type of element chemically bonded
1. AA compound
5[blank_start]an ion[blank_end] is an atom (or group of atoms) that has an overall charge, ege h+, cl-, so4 2-
1. Aan ion