Answer:
Be Electron configuration: 1s2 2s2
Be Orbital Diagram: \//\ \//\ (it would be little arrows going up and down to show the spins)
F Electron Configuration: 1s2 2s2 2p5
F Orbital Diagram: \//\ \//\ \//\ \//\ \/
Answer:
Energy is released in this reaction possibly in the form of heat thus it is an exergonic and or exothermic reaction.
I’m not really sure what the qn is asking for but if i’m not wrong it should be ‘1’ for each blank!
2.1 billion years
2,139,000,000 to be exact
Late answer:
Chromosphere.