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5 Cards in this Set
- Front
- Back
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Definition of isotopes |
Isotopes are atoms of the same element with the same number of protons but different number of neutrons. |
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Types of properties and if its different or similar |
Isotopes have the same chemical properties - same number of valence electrons - similar chemical formula Isotopes have different physical properties - different density - different boiling and melting point - different rate of diffusion * due to different Mr |
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1. Chlorine gas is made up of 75% chlorine-35 and 25% chlorine-37. Find out the Ar(average mass) of chlorine atom. |
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2. D had 2 isotopes, D-12 and D-13. Given that the Ar of D is 12. 011. Find their percentage abundance of D-12. |
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List the possible Mr of CO² if oxygen has 2 isotopes, oxygen-16 and oxygen-18. |
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