1. b
2.a
3.c
I think . hope I get it right
<u>Q</u><u>U</u><u>E</u><u>S</u><u>T</u><u>I</u><u>O</u><u>N</u><u> </u><u>:</u>
- highest energy level for lithium
<u>A</u><u>N</u><u>S</u><u>W</u><u>E</u><u>R</u><u> </u><u>:</u>
- There are 2 electrons on the first energy level and 1 electron on the second. Explain that the first energy level can only have 2 electrons so the next electron in lithium is on the next (second) level. Explain that neon has 10 protons and 10 electrons.
Answer:
Sounds travels in transverse waves requires a medium to travel through
The answer is D. Use the equation PV=nRT
P=(.567mol)(.0821)(300K)/4.5L
Organic elements, depends on the context of the question but I suspect that is the answer. The organic elements are H,O,C,N,P,S
