Flashcards
Chemistry topic 1 atoms and elements
Flashcards do conjunto (7)
- 1Describe the structure of an atomAn atom contains a nucleus consisting of protons and neutrons with electrons which move around the energy levels (shells)
- 2What is the relative mass of a proton?1
- 3What is the relative charge of an electron?-1
- 4How can you find the number of neutrons?Subtract the atomic number from the mass number
- 5What is an element?An element consists of only one type of atom and they all have the same atomic number
- 6What is the symbol for carbon?C
- 7What is the symbol for sodium?Na
Informações
- Descrição
- Flashcards on Chemistry topic 1 atoms , created by Elizabeth Knowles on 18/02/2019.
- Criado por
- Elizabeth Knowles
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