Predict what you would observe if you added platinium to dilute hydrochloric acid d-predict what you would observe if you left a piece of gold in a beaker of water for a week? give a reason for your
prediction
Help please!!

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

can you list the answers so i can answer

catya your not at all which answer i've seen you do this on another question!

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