What is the total number of protons in the nucleus of an atom of potassium-42?
(1) 15 (3) 39<...
Chemistry, 22.08.2019 12:00 alexar6332
What is the total number of protons in the nucleus of an atom of potassium-42?
(1) 15 (3) 39
(2) 19 (4) 42
Answers: 1
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Chemistry worksheet - i am not sure what they are asking for exactly?
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Chemistry, 23.06.2019 07:00
The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing
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