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Neutrons
________ have a charge of 1, a mass of- 1 and are found in the nucleus.
Protons
________ have a charge of +1, a mass of +1 and are found in the nucleus.
Electrons
________ have a charge of 0, a mass of 1 /1840 and are found in shells surrounding the nucleus.
Isotopes
________ are atoms of an element with the same atomic number but a different mass number, indicating a different number of neutrons.
electrostatic attraction
As the number of electrons is different to the number of protons, the atoms are now charged particles known as ions, which are attracted to each other by ________.
metal atoms
When ________ react with non- metal atoms, they chemically combine to form compounds.
neutrons
Protons and ________ are found in the nucleus, in the centre of the atom.
Electrons
________ orbit the nucleus in shells; there are a maximum number of electrons that fit in each shell.
Chlorine has two main isotopes
35Cl and 37Cl
The chlorine atom gains this electron to form the Cl
anion, with electronic configuration 2,8,8
