Answer:
uh
Explanation:
I think its like radar or something like that- im not too sure sorry
Zinc (Zn) always has a +2 charge. It is one of the exceptions.
Answer:
Ca generally loses two electrons from its outer shell to form a Ca2+ ion.
Answer: Melatonin has been used safely for up to 2 years in some people. However, it can cause some side effects including headache, short-term feelings of depression, daytime sleepiness, dizziness, stomach cramps, and irritability. Do not drive or use machinery for four to five hours after taking melatonin.
Answer: Microscope
Explanation: This is a kid answering :)