Question

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. ​

Answer 1

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.

Answer 2

valence electrons

Step-by-step explanation:

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