Science Acronyms?! Homework Help!?!?

Question

well i just got science homework and it's to identify these acronyms. i got some of them but i don't know if their right. and some of them are symbols. so if anyone knows any of them please help me!!!!

RNA

ribonucleic acid

W

weight

mL

milliliter

Ar

???

µm

micrometer

O(then has a mini plus on top, like the power of an exponent)

????

the next one is like a really fancy capitol A but there's no line going across and the top has a little curve going to the left.

so does anyone know them? if you do please answer!!!

Answer 1

You are right in all.....

Ar is Argon

The O with a mini plus on top is an Oxygen ion that has lost 1 electron.

And the fancy A with no line going across and the top having a little curve is called the lambda and is the Greek symbol for wavelength.