Answer:the answer is hypothesis
Explanation: that’s the answer
Answer: S,Fe,O2,Sr, and Al
Explanation: I saw it on quizlet
Copper has 29 electrons, and its electron configuration is:
1s2 2s2 2p6 3s2 3p6 3d10 4s1.
Therefore, copper has 1 valence electron.
Hope this helps~
It matters to the aerodynamics of it because sometimes it's good to have the weight but only if it can take it.
