B, a. hopefully that helps
Answer
:just switch the first ones around
Explanation:
i d0nt know how to explain sorry
Be and B: Be is 1s2 2s2 and B is 1s2 2s2 2p1
Be has full 2 orbitals and so does B but B only has 1 electron in p so it is really unstable and easy to react. So there is a dip in ionization energies. The other questions are similar to this so if you need, feel free to ask me
Answer:
I believe it is Spruce, because of the shape of the leaves
Answer: its Important that the new cells have a copy of every chromosome so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set
Explanation:ye
