Answer:
7
Explanation:
sodium has 1 valence electron because of its place on the periodic table. a trick to use is included in the picture below to find out how many valence electrons an element has. to get from 1 to 8 we add 7.
I hope this helps :))
I believe the answer is A. <span>wavelength and frequency. </span>
You would have to look for the mass of the sample and the volume of the sample.
Answer:
Explanation:
check the attachment below for correct explanations.
<span>A) elements and compounds.
Compounds are two combined elements.</span>