Atoms, ions and compounds 2.1-2.2
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What symbol is the number of protons denoted with?
Z
What symbol is the mass number denoted with?
A
What is similar and different of isotopes of the same element?
Isotopes of the same element have the same chemical reactions Number of neutrons has no effect on reactions of an element Same number of electrons May have small differences in physical properties
What is the name of a positive and negative ion?
Positive: Cation Negative: Anion
Which sub-atomic particle is slightly larger?
Neutron
Where does the energy released from fusion come from? What does this mean therefore?
Mass is lost as energy (products slightly less mass) Because atoms lose mass when the nucleus fuses together, you cannot add the number of protons and neutrons to get an accurate relative mass
What is the standard isotope which bases all atomic masses?
Carbon-12