<span>c. atoms are always in motion..............</span>
Answer:
¨Facts you didn´t know¨ or ¨unknown facts¨
Explanation:
Here are the answers to the question. Make sure to give a valid reason, please.
A. the sum of the protons and neutrons in one atom of the element.
B. a ratio based on the mass of a carbon-12 atom.
C. a weighted average of the masses of an element's isotopes.
D. twice the number of protons in one atom of the element.
Answer:
I feel it would be D. 120.00 I'm really not sure
Explanation: