Answer:
I think it's surface cut by streams
Aluminum atomic number 13 becomes Neon with an atomic number of 10 when it loses three valence electrons.
Answer:
Helium
Explanation: The ionization energy decreases from the top to bottom in groups. And increases from left to the right across a period. Therefor Helium has tge largest first ionization energy, while francium has one of the lowest.
Using the significant figure it would be 27.3