Ionization energy is directly proportional to elements location on the periodic table
Answer:
(chemical) is that what you where asking
Explanation:
can i have a brainlist
I believe it's answer #3. Logically, at least.
You can test #1 through trial and error.
You can experiment #2 also through trial and error.
You cannot test #3 through trial and error, because that would be catastrophic.
You can test #4 through a survey and individual study and data collection.
Answer:
By weight they have the same mass, but the number of atoms is different
Explanation:
