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Use the drop-down menu to complete the statement. This is why they have similar Atoms of elements in the same group have the same number of chemical properties. ​

User YjyJeff
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2 Answers

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Periodic table? I don’t really know what you’re options are since there is no picture of the drop down or anything. If you can tell me what the options are, then I can answer more accurately. What you’re describing right now is the periodic table.
User Alex Libov
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Answer:

valence electrons

Step-by-step explanation:

i just took the test

User Ubik
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